Hoarding Disorder: Symptoms, Causes, and How It Is Diagnosed and Treated
Updated: 2 days ago
Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026
TL;DR: Hoarding disorder is an ongoing difficulty letting go of possessions, driven by a belief that items must be saved and distress at the thought of discarding them [1]. Clutter builds gradually from the teen years into middle age and beyond, crowding out rooms, raising safety risks such as falls and fire, and straining relationships. It is not a lifestyle choice or simple messiness — it is a recognized mental health condition. Cognitive behavioral therapy (CBT) is the main treatment and works best with patience, small daily steps, and support from family and professionals [2].
Quick Answer
Hoarding disorder is a mental health condition in which a person finds it very hard to part with possessions because they believe the items must be saved. Clutter builds until spaces become unusable, creating fall, fire and health risks. Symptoms usually begin between ages 15 and 19. The main treatment is cognitive behavioral therapy, and early help improves outcomes. [1] [2]
What the research says
CBT produces large improvements in hoarding symptoms. A meta-analysis of 16 studies (505 participants) found large effects from before to after treatment (Hedges' g = 1.11; 95% CI 0.92 to 1.29) and to follow-up (g = 1.25; 95% CI 0.94 to 1.56), with a smaller effect on depressive symptoms (g = 0.45). Because there were no controlled trials, only within-group effects could be calculated, and the authors called for controlled and long-term trials (Rodgers et al., Journal of Affective Disorders, 2021 [3]).
Other talking therapies work too, but symptoms often persist. A review of 41 studies (1,343 participants) reported a large reduction in hoarding symptoms after psychological treatment (g = -1.09), sustained at follow-up in 18 studies (g = -1.12), and a reduction versus controls across 8 randomized trials (g = -0.75). CBT was not superior to other psychological interventions, and symptoms often remained above the clinical cut-off (O'Brien and Laws, Journal of Psychiatric Research, 2024 [4]).
Hoarding is common enough to matter. A systematic review of 112 studies of obsessive-compulsive and related disorders found that point prevalence estimates for hoarding disorder ranged from 0.98% to 5.81% across studies (Jeong et al., American Journal of Psychiatry, 2026 [5]).
What Is Hoarding Disorder?
Hoarding disorder is an ongoing difficulty throwing away or parting with possessions because you believe that you need to save them. You may experience distress at the thought of getting rid of the items. Over time, you gradually keep or gather a huge number of items, regardless of their actual value [1].
Hoarding often creates extremely cramped living conditions with only narrow pathways winding through stacks of clutter. Countertops, sinks, stoves, desks, stairways, and all other surfaces are usually piled with stuff. You may not be able to use some areas for their intended purpose — for example, you may not be able to cook in the kitchen. When there is no more room inside the home, the clutter may spread to the garage, vehicles, yard, and other storage areas.
Hoarding ranges from mild to severe. In some cases, hoarding may not have much impact on life, while in other cases it seriously affects daily functioning.
People with hoarding disorder may not see it as a problem, so getting them to take part in treatment can be challenging. But intensive treatment can help you understand how your beliefs and behaviors can be changed so that you can live a safer, more enjoyable life.
Symptoms
The first symptoms of hoarding disorder often appear during the teenage to early adult years. You may get and save too many items, gradually build up clutter in living spaces, and have difficulty getting rid of things [1].
As you grow older, you may continue getting and holding onto things that you may never use and do not have space for. By middle age, the clutter can become overwhelming as symptoms become more severe and increasingly difficult to treat.
Problems with hoarding gradually develop over time and tend to be a private behavior. You may avoid having family, friends, or repair workers in your home. Often, major clutter has developed by the time it reaches the attention of others.
Symptoms of hoarding disorder may include getting and keeping too many items that you may not have a need for right now and do not have space for. Ongoing difficulty throwing out or parting with your things, regardless of their actual value, is a hallmark sign. You may feel a need to save these items and be upset by the thought of getting rid of them. Clutter can build up to the point where you cannot use rooms. You may also try to be perfect, avoid or delay decisions, and have problems with planning and organizing.
Getting too many items and refusing to part with them results in disorganized piles or stacks of items, such as newspapers, clothes, paperwork, books, or sentimental items. Items crowd and clutter your walking spaces and living areas. Rooms cannot be used for their intended purpose, such as not being able to sleep in your bed.
More serious consequences can develop over time. Food or trash may build up to large, unsanitary levels. Distress or problems functioning can make it hard to keep yourself, others, and pets safe in your home. Conflict with others who try to reduce or remove clutter is common, along with relationship issues, avoided social activities, and employment problems. Difficulty organizing items can lead to losing important items in the clutter.
With hoarding disorder, items are usually saved because you believe these items are unique or that you will need them at some point in the future. You may feel emotionally connected to items that remind you of happier times or represent beloved people or pets. You may feel safe and comforted when surrounded by things, or you may not want to waste anything.
Common symptom | What it looks like in daily life |
Keeping too many items | Acquiring items with no current need and no space for them |
Difficulty discarding | Distress at the thought of getting rid of things, regardless of value |
Unusable rooms | Clutter so dense you cannot cook, sleep, or walk normally |
Piles and stacks | Disorganized heaps of newspapers, clothes, paperwork, books, keepsakes |
Perfectionism and delays | Avoiding or delaying decisions; trouble planning and organizing |
Losing important items | Buried belongings hidden in the clutter |
Private behavior | Avoiding visits from family, friends, and repair workers |
Hoarding Is Different From Collecting
Hoarding disorder is different from collecting. People who have collections, such as stamps or model cars, carefully search out specific items, organize them, and display their collections. Collections can be large, but they are not usually cluttered. Also, they do not cause the distress and problems functioning that are part of hoarding disorder [1].
Animal Hoarding
People who hoard animals may collect dozens or even hundreds of pets. Animals may be confined inside or outside. Because of the large numbers, these animals often are not cared for properly. The health and safety of the person and the animals are often at risk because of unsanitary conditions [1].
When to See a Doctor
If you or a loved one has symptoms of hoarding disorder, talk with a healthcare provider or a mental health provider with expertise in diagnosing and treating hoarding disorder as soon as possible. Some communities have agencies that help with hoarding problems. Check with the local or county government for resources in your area [1].
As hard as it might be, if your loved one's hoarding disorder threatens health or safety, you may need to contact local authorities, such as police, fire, public health, child or elder protective services, or animal welfare agencies.
Causes
It is not clear what causes hoarding disorder. Genetics, brain function, and stressful life events are being studied as possible causes [1].
Risk Factors
Hoarding usually starts around ages 15 to 19. It tends to get worse with age, and hoarding is more common in older adults than in younger adults [1].
Risk factor | How it contributes |
Personality style | Trouble making decisions; problems with attention, organization, and problem-solving |
Family history | Strong association between having a family member with hoarding disorder and having the disorder yourself |
Stressful life events | Hoarding that begins after a difficult event such as the death of a loved one, divorce, or losing possessions in a fire |
Increasing age | Symptoms tend to worsen over time and are more common in older adults |
Complications
Hoarding disorder can cause a variety of complications. These include an increased risk of falls and injury or being trapped by shifting or falling items. Family conflicts, loneliness, and social isolation are common. Conditions that are not clean can become a health risk, and piled possessions create a fire hazard. Poor work performance and legal issues, such as eviction, may follow [1].
Complication | Why it happens |
Falls and injuries | Narrow pathways and shifting or falling items |
Health hazards | Unsanitary buildup of food or trash |
Fire hazard | Piled papers, clothes, and combustible items |
Family conflict | Disagreements over clutter and its removal |
Social isolation | Avoiding visitors and social activities |
Work and legal problems | Poor work performance; eviction and similar legal issues |
Hoarding disorder is also linked with other mental health conditions, such as depression, anxiety disorders, obsessive-compulsive disorder (OCD), and attention-deficit/hyperactivity disorder (ADHD).
Prevention
Because little is understood about what causes hoarding disorder, there is no known way to prevent it. However, as with many mental health conditions, getting treatment at the first sign of a problem may help prevent hoarding from getting worse. This is especially important because by the time clutter becomes a noticeable problem, hoarding likely has been going on for a while [1].
Diagnosis
People often do not seek treatment for hoarding disorder, but rather for other issues, such as depression, anxiety, or relationship problems. To help diagnose hoarding disorder, it is best to see a mental health provider who has expertise in diagnosing and treating the condition [2].
You will have a mental health exam that includes questions about emotional well-being. You will likely be asked about your beliefs and behaviors related to getting and saving items and the impact clutter may have on your quality of life. Your mental health provider may ask your permission to talk with relatives and friends. Pictures and videos of your living spaces and storage areas affected by clutter are often helpful. You also may be asked questions to find out if you have symptoms of other mental health conditions.
Treatment
Treatment of hoarding disorder can be challenging but effective if you keep working on learning new skills. Some people do not recognize the negative impact of hoarding on their lives or do not believe they need treatment. This is especially true if the possessions or animals offer comfort. If these possessions or animals are taken away, people will often react with frustration and anger. They may quickly collect more to help satisfy emotional needs [2].
The main treatment for hoarding disorder is cognitive behavioral therapy (CBT), a skills-based approach to therapy. You learn how to better manage beliefs and behaviors that are linked to keeping the clutter. Your provider also may prescribe medicines, especially if you have anxiety or depression along with hoarding disorder.
Cognitive Behavioral Therapy (CBT)
Cognitive behavioral therapy is the main treatment for hoarding disorder. Try to find a therapist or other mental health provider with expertise in treating hoarding disorder.
As part of CBT, you may learn to identify and challenge thoughts and beliefs related to getting and saving items. You will learn to resist the urge to get more items and to organize and group things to help you decide which ones to get rid of, including which items can be donated. You will work on improving your decision-making and coping skills.
Treatment may also include removing clutter in your home during in-home visits by a therapist or professional organizer. You will learn to reduce isolation and increase opportunities to join in meaningful social activities and supports, and learn ways to increase your desire for change. Family or group therapy may be part of the plan, along with occasional visits or ongoing treatment to help you keep up healthy habits.
CBT component | What you learn or do |
Thought and belief work | Identify and challenge beliefs about getting and saving items |
Acquisition resistance | Learn to resist the urge to get more items |
Organizing skills | Group things to decide what to get rid of, including donations |
Decision-making and coping | Improve both skills to reduce avoidance and delays |
In-home decluttering | Therapist or professional organizer visits the home |
Social reconnection | Reduce isolation and join meaningful activities and supports |
Motivation building | Increase your desire for change |
Family or group therapy | Involve loved ones and peers in treatment |
Maintenance visits | Occasional or ongoing treatment to keep up healthy habits |
Treatment often involves regular help from family, friends, and agencies to help remove clutter. This is often the case for the elderly or those struggling with medical conditions that may make it difficult to keep up the effort and desire to make changes.
Children With Hoarding Disorder
For children with hoarding disorder, it is important to have the parents involved in treatment. Some parents may think that allowing their child to get and save countless items may help lower their child's anxiety and avoid family fights. This is sometimes called "family accommodation." This actually may do the opposite and strengthen the child's tendency to get and save items [2].
In addition to therapy for their child, parents may find professional guidance helpful to learn how to respond to and help manage their child's hoarding behavior.
Medicines
Cognitive behavioral therapy is the first treatment recommended for hoarding disorder. There are currently no medicines approved by the Food and Drug Administration (FDA) to treat hoarding disorder. Medicines are used to treat other conditions such as anxiety and depression that often occur along with hoarding disorder. The medicines most commonly used are a type of antidepressant called selective serotonin reuptake inhibitors (SSRIs). Research continues on the most effective ways to use medicines in the treatment of hoarding disorder [2].
Lifestyle and Home Support
In addition to professional treatment, there are steps you can take to help care for yourself [2].
Follow your treatment plan. It is hard work, and it is common to have some setbacks over time. But treatment can help you feel better about yourself, improve your desire to change, and reduce your hoarding. Have a daily schedule to work on reducing your clutter, during times of the day when you have the most energy.
Accept assistance. Local resources, professional organizers, and loved ones can work with you to make decisions about how best to organize and unclutter your home and to stay safe and healthy. It may take time to get back to a safe home environment. Help is often needed to stay organized around the home.
Reach out to others. Hoarding can lead to isolation and loneliness, which in turn can lead to more hoarding. If you do not want visitors in your house, try to get out to visit friends and family. Joining a support group for people with hoarding disorder can let you know that you are not alone. These groups can help you learn about your behavior and available resources.
Try to keep yourself clean and neat. If you have possessions piled in your tub or shower, resolve to move them so that you can bathe or shower.
Make sure you are getting proper nutrition. If you cannot use your stove or reach your refrigerator, you may not be eating properly. Try to clear those areas so that you can prepare healthy meals.
Look out for yourself. Remind yourself that you do not have to live in chaos and distress — that you deserve better. Focus on your goals and what you can gain by reducing clutter in your home.
Take small steps. With a professional's help, you can tackle one area at a time. Small and consistent wins like this can lead to big wins.
Do what is best for your pets. If the number of pets you have has grown beyond your ability to care for them properly, remind yourself that they deserve to live healthy and happy lives. That is not possible if you cannot provide them with proper nutrition, clean living conditions, and veterinary care.
Coping and Support
Hoarding disorder affects more than just the person living with it — families and loved ones carry real emotional weight. If you are supporting someone with hoarding disorder, remember that reassurance matters: a loved one will likely need reassurance that no one is going to go into their house and start throwing things out. Encourage professional help rather than forced cleanouts, which often trigger frustration and renewed acquiring. For your own support, meeting alone with a mental health provider with expertise in hoarding disorder can offer guidance on how to encourage your loved one to seek help [2].
Preparing for Your Appointment
If you or a loved one has symptoms of hoarding disorder, your healthcare provider may refer you to a mental health provider, such as a psychiatrist or psychologist, with experience diagnosing and treating hoarding disorder [2].
Because some people with hoarding disorder symptoms do not recognize that their behavior is a problem, you as a friend or family member may experience more distress over the hoarding than your loved one does. If this is the case, you may want to first meet alone with a mental health provider with expertise in treating hoarding disorder. A provider can offer support and help on how to encourage your loved one to seek help.
Before your appointment, make a list of any symptoms you are experiencing and for how long. It will help the mental health provider to know what kinds of items you feel you have to save and your personal beliefs about getting and keeping items. Note challenges you have experienced in the past when trying to manage your clutter, along with key personal information including traumatic events or losses in your past, such as divorce or the death of a loved one.
Also list your medical information, including other physical or mental health conditions, and any medicines, vitamins, herbal products, or other supplements you take and their doses. Write down questions to ask your mental health provider. You may want to take a trusted family member or friend along, if possible. They can offer support and help remember the details discussed at the appointment. Bring pictures and videos of living spaces and storage areas affected by clutter.
Questions to ask your mental health provider:
Do you think my symptoms are cause for concern? Why?
Do you think I need treatment?
What treatments are most likely to be effective?
How much can I expect my symptoms to improve with treatment?
How much time will it take before my symptoms begin to improve?
How often will I need therapy sessions, and for how long?
Are there medicines that can help?
During the appointment, your provider may ask what types of things you tend to get and save, whether you avoid throwing things away, and whether you avoid making decisions about your clutter. You may be asked how often you decide to get or keep things you do not have space or use for, and how it would make you feel if you had to get rid of some things. The provider may also ask whether the clutter keeps you from using rooms for their intended purpose or from inviting people to visit, how many pets you have and whether you can care for them properly, and whether past attempts to reduce clutter succeeded.
Conclusion
Hoarding disorder is a recognized mental health condition — not laziness, not simple clutter, and not a character flaw. It begins quietly in the teen or early adult years, grows over decades, and can make homes unsafe and life increasingly isolated. The good news is that cognitive behavioral therapy is an effective, skills-based treatment, and small daily steps supported by family and professionals can lead to a safer, more comfortable home and a better quality of life. If you or someone you love is living with hoarding, the first step is the same as for any health condition: talk to a professional with expertise in this disorder. Early help makes a real difference.
Need help finding a mental health professional experienced with hoarding disorder? Ask your primary care provider for a referral, or contact your local county health agency to learn about community hoarding resources. Start with one small, safe step today.
Frequently Asked Questions
What is hoarding disorder?
Hoarding disorder is an ongoing difficulty throwing away or parting with possessions because you believe that you need to save them, often with distress at the thought of getting rid of items. It gradually builds huge amounts of clutter regardless of the items' actual value and can make homes unsafe and rooms unusable.
When do hoarding disorder symptoms start?
The first symptoms of hoarding disorder often appear during the teenage to early adult years, usually around ages 15 to 19. Hoarding tends to get worse with age and is more common in older adults than in younger adults.
What are the main symptoms of hoarding disorder?
Main symptoms include keeping too many items with no need or space for them, ongoing difficulty discarding things regardless of their value, distress at the thought of getting rid of items, clutter that makes rooms unusable, perfectionism, and trouble with planning, organizing, and decision-making.
Is hoarding the same as collecting?
No. Hoarding disorder is different from collecting. Collectors carefully search out specific items, organize them, and display their collections. Collections can be large but are not usually cluttered and do not cause the distress and problems functioning that are part of hoarding disorder.
What causes hoarding disorder?
It is not clear what causes hoarding disorder. Genetics, brain function, and stressful life events are being studied as possible causes. Risk factors include certain personality styles, a family history of hoarding, and stressful life events such as the death of a loved one or divorce.
What complications can hoarding disorder cause?
Complications include an increased risk of falls, injury from shifting or falling items, family conflicts, loneliness and social isolation, unsanitary health risks, fire hazards, poor work performance, and legal issues such as eviction.
How is hoarding disorder diagnosed?
Diagnosis is best done by a mental health provider with expertise in the condition. It involves a mental health exam with questions about emotional well-being, beliefs and behaviors around saving items, and the impact of clutter on quality of life. Pictures and videos of affected spaces are often helpful, and permission may be given to speak with relatives and friends.
What is the main treatment for hoarding disorder?
The main treatment is cognitive behavioral therapy (CBT), a skills-based approach in which you learn to identify and challenge beliefs about saving items, resist the urge to get more, organize and declutter, and improve decision-making and coping skills. Treatment may include in-home visits from a therapist or professional organizer.
Are there medicines for hoarding disorder?
There are currently no medicines approved by the FDA to treat hoarding disorder. Medicines such as selective serotonin reuptake inhibitors (SSRIs) may be prescribed to treat related conditions such as anxiety and depression that often occur along with hoarding disorder.
What self-care steps help with hoarding disorder?
Helpful steps include following your treatment plan with a daily decluttering schedule, accepting help from professionals and loved ones, reaching out to others to reduce isolation, joining a support group, keeping basic hygiene and nutrition areas clear, taking small steps one area at a time, and ensuring pets receive proper care.
How can I help a loved one with hoarding disorder?
Offer reassurance that no one will go into the house and start throwing things out, and encourage professional help rather than forced cleanouts. You can first meet alone with a mental health provider experienced in hoarding disorder for support and guidance. If hoarding threatens health or safety, local authorities such as fire, public health, or protective services may need to be contacted.
References
Mayo Clinic Staff. Hoarding disorder - Symptoms and causes. Mayo Clinic. January 26, 2023. https://www.mayoclinic.org/diseases-conditions/hoarding-disorder/symptoms-causes/syc-20356056
Mayo Clinic Staff. Hoarding disorder - Diagnosis and treatment. Mayo Clinic. January 26, 2023. https://www.mayoclinic.org/diseases-conditions/hoarding-disorder/diagnosis-treatment/drc-20356062
Rodgers N, McDonald S, Wootton BM. Cognitive behavioral therapy for hoarding disorder: an updated meta-analysis. Journal of Affective Disorders. 2021;290:128-135. PMID 33993079. https://doi.org/10.1016/j.jad.2021.04.067
O'Brien E, Laws KR. Decluttering minds: psychological interventions for hoarding disorder - a systematic review and meta-analysis. Journal of Psychiatric Research. 2024;181:738-751. PMID 39756330. https://doi.org/10.1016/j.jpsychires.2024.12.029
Jeong YD, Son Y, Jeon S, et al. Global prevalence of obsessive-compulsive and related disorders: a systematic review and modeling study. American Journal of Psychiatry. 2026 (published online July 8, 2026). PMID 42415255. https://doi.org/10.1176/appi.ajp.20250944
Further Reading and Credible Sources
This article is for general informational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional about any medical condition.
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