Hypoparathyroidism: Symptoms, Causes & Treatment Guide
Updated: 2 days ago
Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: September 2026
At a Glance
TL;DR: Hypoparathyroidism is a rare condition in which the body makes too little parathyroid hormone (PTH), the hormone that balances calcium and phosphorus in the body. Too little PTH leads to unusually low calcium and high phosphorus in the blood. Most symptoms — tingling in the fingers, toes, and lips; muscle cramps; twitching; fatigue; and memory trouble — stem from low calcium. The condition is treatable with calcium and vitamin D supplements, dietary changes, and regular blood test monitoring. Because it is most often long-lasting, treatment and testing tend to be lifelong. Seizures or trouble breathing are emergency signs — call your healthcare professional right away.
Quick Answer:
What is hypoparathyroidism? A rare condition where the body doesn't make enough parathyroid hormone (PTH), causing low blood calcium and high blood phosphorus.
What are the main symptoms? Tingling or burning in fingers, toes, and lips; muscle aches or cramps; muscle twitching or spasms (especially around the mouth); tiredness; headaches; and memory trouble.
When is it an emergency? If you have a seizure or trouble breathing — call your healthcare professional right away.
What causes it? Neck surgery (the most common cause), autoimmune disease, hereditary factors, low blood magnesium, and extensive head or neck radiation.
How is it diagnosed? Blood tests (low calcium, low PTH, high phosphorus), a urine test, and sometimes an electrocardiogram.
How is it treated? Oral calcium, prescription vitamin D (calcitriol), magnesium if needed, thiazide diuretics, a calcium-rich/low-phosphorus diet, and in acute cases, IV calcium.
Is treatment lifelong? Usually — because the condition most often is long-lasting, testing and treatment tend to be lifelong.
What Is Hypoparathyroidism, Exactly?
Hypoparathyroidism is a rare condition in which the body doesn't make enough of a key hormone called parathyroid hormone (PTH). PTH helps control and maintain the right balance of two minerals in the body: calcium and phosphorus.
Your body has four small parathyroid glands in the neck near the thyroid gland. Their job is to make parathyroid hormone. When there's too little PTH, two things happen: calcium levels in the blood drop to unusually low levels, and phosphorus levels rise too high.
Treatment for the condition includes supplements and medicines to bring calcium and phosphorus levels back into healthy ranges. Depending on the cause, you'll likely need to take supplements for the rest of your life.
What Are the Symptoms of Hypoparathyroidism?
Symptoms of hypoparathyroidism often are related to low calcium levels in the blood. They can include:
Tingling or burning in the fingers, toes, and lips.
Muscle aches or cramps in the legs, feet, stomach, or face.
Twitching or spasms of muscles, mainly around the mouth but also in the hands, arms, and throat.
Tiredness or weakness.
Headaches.
Trouble with memory.
Symptom | Where You Feel It | What's Behind It |
Tingling or burning | Fingers, toes, lips | Low blood calcium affecting nerves |
Muscle aches or cramps | Legs, feet, stomach, face | Low calcium disrupting muscle function |
Twitching or spasms | Mainly around the mouth; also hands, arms, throat | Calcium's role in muscle control |
Tiredness or weakness | Throughout the body | Overall mineral imbalance |
Headaches | Head | Related to low calcium levels |
Memory trouble | Cognitive | Calcium helps the brain work properly |
When Should You See a Doctor?
Get a healthcare checkup if you think you might have symptoms of hypoparathyroidism.
Emergency signs: Call your healthcare professional right away if you have a seizure or trouble breathing. Hypoparathyroidism can lead to either of these medical problems.
This is important because throat spasms — one of the condition's complications — can make it harder to breathe and may require emergency medical care. When in doubt, don't wait.
What Causes Hypoparathyroidism?
Hypoparathyroidism happens when the parathyroid glands don't make enough parathyroid hormone. To understand why this matters, it helps to understand the two minerals PTH controls.
Calcium is stored in bones and teeth, and it makes them hard. But calcium also plays other key roles: it's needed for muscles to work, it helps the nerves and brain work properly, and it's needed to control heart rhythm and blood pressure.
Phosphorus is found in all cells but mostly in the bones. It's needed to help the body create energy from food, and it helps the muscles, nerves, heart, and kidneys work.
Too little parathyroid hormone causes irregular levels of both minerals. The causes behind that shortage fall into five main categories.
The Five Main Causes
Neck surgery. This is the most common cause of hypoparathyroidism. The condition can happen after the parathyroid glands get damaged by mistake or removed during surgery. Neck surgery may be done to treat conditions of the thyroid gland, or to treat throat or neck cancer.
Autoimmune disease. With this type of condition, the body's defenses attack healthy tissue by mistake. When the parathyroid glands are attacked, they stop making their hormone.
Hereditary hypoparathyroidism. This condition runs in families. It can result from being born without parathyroid glands or with glands that don't work correctly. Some types of hereditary hypoparathyroidism are linked with deficiencies of other glands that make hormones.
Low levels of magnesium in the blood. Low magnesium levels can affect how well the parathyroid glands work. Healthy magnesium levels are needed for the glands to make enough PTH.
Extensive cancer radiation treatment of the head or neck. Radiation can destroy the parathyroid glands. Rarely, a type of radiation treatment for thyroid diseases called radioactive iodine may lead to hypoparathyroidism.
Cause | How It Happens |
Neck surgery (most common) | Glands damaged or removed by mistake during thyroid or neck cancer surgery |
Autoimmune disease | The body's defenses attack the parathyroid glands, which stop making hormone |
Hereditary | Born without glands or with glands that don't work; some types link to other hormone deficiencies |
Low blood magnesium | Healthy magnesium is needed for the glands to make enough PTH |
Head/neck radiation | Extensive cancer radiation can destroy the glands; rarely, radioactive iodine |
Five causes of hypoparathyroidism — neck surgery (most common), autoimmune disease, hereditary factors, low magnesium, and radiation treatment — plus risk factors: recent neck or thyroid surgery, family history, and conditions like Addison's disease.
What Raises Your Risk?
Factors that can raise the risk of hypoparathyroidism include recent neck surgery — especially if the thyroid was involved, a family history of hypoparathyroidism, and having certain autoimmune or hormone-related conditions, such as Addison's disease, which causes the adrenal glands to make less of their hormones.
Risk Factor | Why It Matters |
Recent neck surgery (especially thyroid) | The most common cause of the condition |
Family history | Hereditary forms run in families |
Addison's disease or similar autoimmune/hormone conditions | Autoimmune attacks can target the parathyroid glands |
Can Hypoparathyroidism Be Prevented?
There are no specific steps to take to prevent hypoparathyroidism. But if you're scheduled to have thyroid or neck surgery, talk to your surgeon and ask about the risk of damage to your parathyroid glands during the procedure. Before surgery, your healthcare professional may choose to test your calcium, parathyroid hormone, and vitamin D levels, and may have you start taking supplements if needed.
If the risk for hypoparathyroidism after surgery is high, your surgeon may suggest a procedure to lower the risk. It involves moving one or two of the parathyroid glands into a muscle toward the front of the neck. This procedure, called parathyroid autotransplantation, is done during the surgery. Sometimes, the surgeon may need to move parathyroid tissue to another area of the body, such as the forearm. Note that transplanted parathyroid tissue does not always work properly.
If you've had surgery or radiation involving your thyroid or neck, be aware of possible symptoms — such as a tingling or burning feeling in the fingers, toes, or lips, or muscle twitching or cramping. If you get symptoms, prompt treatment with calcium and vitamin D can lessen the effects of hypoparathyroidism.
What Are the Complications of Hypoparathyroidism?
Hypoparathyroidism can lead to other health conditions. Some of these can be reversed with treatment. Others can't.
Complications That Can Be Reversed
Some conditions that stem from hypoparathyroidism are due to low calcium levels and may get better with treatment. They include cramp-like spasms of the hands and fingers that can be painful and last a long time; muscle pain and twitches or spasms of the muscles of the face, throat, or arms (throat spasms can make breathing harder and may require emergency care); tingling or burning feelings in the lips, tongue, fingers, and toes that may feel like pins and needles; seizures; and problems with kidney function, such as kidney stones and kidney failure.
Low calcium can also cause irregular heart rhythms and fainting. Hypoparathyroidism can cause the heart to have trouble pumping enough blood — a condition called heart failure. Most often, it can't be cured.
Complications That Often Can't Be Reversed
Treatment might prevent these health conditions or keep them from getting worse. But once they happen, taking calcium and vitamin D most often doesn't reverse the damage. These complications include hardening and changes in the shape of bones and poor growth; delayed mental development in children; calcium buildups in the brain, which can cause trouble with balance and movement as well as seizures; clouded vision due to cloudy areas in the lenses of the eyes, called cataracts; and teeth that don't form properly, affecting dental enamel and roots — this can happen when the condition occurs at an early age, while teeth are coming in.
Complication | Reversible? |
Cramp-like spasms of hands and fingers | Often reverses with treatment |
Muscle pain, twitches, spasms (face, throat, arms) | Often reverses; throat spasms may be an emergency |
Tingling or burning (lips, tongue, fingers, toes) | Often reverses with treatment |
Seizures | Often reverses with treatment |
Kidney stones, kidney failure | Often reverses with treatment |
Irregular heart rhythms, fainting, heart failure | Partially reversible; heart failure usually can't be cured |
Bone hardening, poor growth | Usually cannot be reversed |
Delayed mental development in children | Usually cannot be reversed |
Calcium buildups in the brain | Usually cannot be reversed |
Cataracts | Usually cannot be reversed |
Poorly formed teeth | Usually cannot be reversed |
How Is Hypoparathyroidism Diagnosed?
To find out if you have hypoparathyroidism, your healthcare professional may start by asking you about your medical history and giving you a physical exam. You're also given blood and urine tests.
Blood Tests
The following blood test results might suggest hypoparathyroidism:
Test Finding | What It Shows |
Low blood calcium | Direct effect of too little PTH |
Low parathyroid hormone (PTH) | Confirms the glands aren't producing enough |
High blood phosphorus | The flip side of the mineral imbalance |
Low blood magnesium (checked in some cases) | Low magnesium may cause a low blood-calcium level |
Urine Test
Parathyroid hormones act on the kidneys to prevent too much calcium from going into the urine. A urine test can tell whether your body is getting rid of too much calcium.
Other Tests
Your healthcare professional may suggest more tests. These might include other blood tests or an electrocardiogram — a test that checks your heart's rhythm. Low calcium can affect the heart, which is why this check matters.
How Is Hypoparathyroidism Treated?
Treatment aims to ease symptoms and bring calcium and phosphorus levels in your body back into healthy ranges. Several approaches work together.
Supplements and Medicines
Oral calcium. These calcium supplements are taken by mouth as tablets, chews, or liquid. They can raise calcium levels in your blood. In high amounts, they can cause side effects such as constipation in some people.
Vitamin D. High amounts of vitamin D can help your body absorb calcium and get rid of phosphorus. Often, this vitamin D is a prescription supplement called calcitriol. It's different from the usual supplements you can get without a prescription.
Magnesium. If your magnesium level is low and you have symptoms of hypoparathyroidism, you may need to take a magnesium supplement.
Thiazide diuretics. These medicines may be used if your calcium levels stay low even with treatment. They also might be used if the amount of calcium in your urine is very high. Thiazide diuretics can help lessen the amount of calcium lost in urine.
Parathyroid hormone replacement. A medicine that replaces parathyroid hormones has been available to treat this condition, but it is being phased out. A newer type of medicine that replaces parathyroid hormones has been tested in clinical trials but hasn't yet been approved in the United States.
Treatment | How It Works | Things to Know |
Oral calcium | Tablets, chews, or liquid raise blood calcium | High amounts may cause constipation |
Vitamin D (often prescription calcitriol) | Helps the body absorb calcium and eliminate phosphorus | Different from regular over-the-counter vitamin D |
Magnesium | Supports glands and calcium metabolism | Used when magnesium is low and symptoms are present |
Thiazide diuretics | Lessens calcium lost in urine | Used when calcium stays low or urine calcium is high |
PTH replacement | Replaces the missing hormone directly | Earlier medicine is being phased out; newer version still under review in the US |
Diet Changes
Your healthcare professional might recommend that you talk with a registered dietitian. The dietitian is likely to suggest a diet that's:
Rich in calcium. This includes dairy products, green leafy vegetables, and broccoli. It also includes foods with added calcium, such as some orange juices and breakfast cereals.
Low in phosphorus. This means avoiding carbonated soft drinks, which contain phosphorus in the form of phosphoric acid. It also means limiting processed foods, meats, hard cheeses, nuts, and whole grains.
Eat More | Eat Less |
Dairy products, green leafy vegetables, broccoli | Carbonated soft drinks (phosphoric acid) |
Calcium-fortified orange juices and cereals | Processed foods and meats |
— | Hard cheeses, nuts, whole grains |
Calcium Infusion for Quick Relief
If you need symptom relief right away, you may receive calcium through a needle in a vein. This is called an intravenous (IV) infusion, and most often it's done in the hospital. You'll likely also take vitamin D tablets by mouth. After you leave the hospital, you keep taking calcium and vitamin D tablets.
Ongoing Monitoring
Your healthcare professional likely will do blood tests to check your calcium and phosphorus levels on a regular basis. At first, these tests probably will be weekly to monthly. In time, you may need blood tests just once or twice a year. Regular testing lets your care professional change the amount of calcium you take if your levels rise or fall.
Because hypoparathyroidism most often is a long-lasting disorder, testing and treatment tends to be lifelong.
The four-stage pathway — Medical History & Exam, Blood & Urine Tests, Daily Treatment, Lifelong Monitoring — with a note that seizures or trouble breathing are emergency signs requiring immediate care.
How Should You Prepare for Your Appointment?
You'll likely start by seeing your primary care professional. You might then be referred to a doctor called an endocrinologist, who treats hormone disorders.
What you can do. When you make the appointment, ask if there's anything you need to do in advance — for example, you may be told not to eat for a certain number of hours the night before a test. Take a family member or friend with you if you can; a loved one can help you remember the information you're given.
Before your appointment, make a list of:
Your symptoms, including any that don't seem related to the reason for your appointment, and note when the symptoms began.
Key personal information, including major stresses or recent life changes, your medical history, and your family's medical history.
All medicines, vitamins, herbs, and other supplements you take, including the doses.
Questions to ask your healthcare professional.
Questions to ask may include: What is the likely cause of my symptoms, and are there other possible causes? What tests do I need? Is my condition likely short-term or long-term? What treatments are available, and which do you recommend? Are there alternatives to the main treatment approach? How can I best manage this condition with my other health conditions? Should I see a specialist? Do I need to change my diet? Are there brochures or other printed material I can take, and what websites do you recommend? Feel free to ask other questions during your checkup.
What to expect from your doctor. Your healthcare professional is likely to ask questions such as: Have you recently had surgery involving your neck? Have you received radiation therapy to your head or neck or therapy for thyroid problems? Has anyone in your family had symptoms like yours? Do your symptoms happen all the time or just some of the time? How bad are your symptoms? What, if anything, seems to make your symptoms better? What, if anything, seems to make your symptoms worse?
Conclusion: A Rare Condition With a Clear Path to Management
Hypoparathyroidism is rare, but once it's identified, it's manageable. The condition disrupts your body's calcium and phosphorus balance, which drives symptoms ranging from tingling lips to muscle spasms — and in severe cases, seizures or breathing trouble. Treatment through calcium and vitamin D supplements, dietary changes, and regular monitoring brings those minerals back into healthy ranges, though it typically requires a lifelong commitment.
Know your risk level. If you've had recent neck or thyroid surgery, a family history of the condition, or an autoimmune condition like Addison's disease, watch for tingling in your fingers, toes, or lips and muscle cramps — and bring it up at your next appointment. If you ever experience a seizure or trouble breathing, seek care right away.
Call to action: Book a visit with your primary care professional or an endocrinologist, and bring this guide's appointment-prep checklist with you.
Frequently Asked Questions
What is hypoparathyroidism?
Hypoparathyroidism is a rare condition in which the body doesn't make enough parathyroid hormone (PTH), the hormone that keeps calcium and phosphorus in balance. Too little PTH leads to unusually low calcium and high phosphorus in the blood.
What are the symptoms of hypoparathyroidism?
Symptoms often relate to low blood calcium and include tingling or burning in the fingers, toes, and lips; muscle aches or cramps in the legs, feet, stomach, or face; muscle twitching or spasms (mainly around the mouth); tiredness or weakness; headaches; and trouble with memory.
When should I seek emergency care for hypoparathyroidism?
Call your healthcare professional right away if you have a seizure or trouble breathing — hypoparathyroidism can lead to either of these problems, and throat spasms can make it harder to breathe.
What causes hypoparathyroidism?
The most common cause is neck surgery that accidentally damages or removes the parathyroid glands. Other causes include autoimmune disease, hereditary factors, low blood magnesium, and extensive cancer radiation treatment of the head or neck.
What tests diagnose hypoparathyroidism?
Blood tests showing low calcium, low parathyroid hormone, and high phosphorus suggest the diagnosis; magnesium may also be checked. A urine test shows whether your body is getting rid of too much calcium, and an electrocardiogram may check your heart's rhythm.
How is hypoparathyroidism treated?
Treatment aims to ease symptoms and restore healthy calcium and phosphorus levels using oral calcium supplements, prescription vitamin D (often calcitriol), magnesium if needed, thiazide diuretics to reduce calcium loss in urine, a calcium-rich and low-phosphorus diet, and — for rapid relief — IV calcium in the hospital.
Is treatment for hypoparathyroidism lifelong?
Usually. Because hypoparathyroidism most often is a long-lasting disorder, testing and treatment tend to be lifelong, with blood tests starting weekly to monthly and eventually settling to once or twice a year.
Is there a parathyroid hormone replacement medicine?
An earlier PTH replacement medicine has been available but is being phased out. A newer PTH replacement has been tested in clinical trials but hasn't yet been approved in the United States.
Can hypoparathyroidism cause permanent damage?
Some complications — spasms, tingling, seizures, and kidney problems — may improve with treatment. But others, such as bone changes, cataracts, calcium buildups in the brain, delayed mental development in children, and poorly formed teeth, often can't be reversed once they occur. That's why early and consistent treatment matters.
References
Hypoparathyroidism — Symptoms & causes. mayoclinic.org
Hypoparathyroidism — Diagnosis & treatment. mayoclinic.org
Disclaimer: This article is for general educational purposes only and is not a substitute for professional medical advice, diagnosis or treatment. Always seek the guidance of your healthcare professional with any questions about a medical condition. In a medical emergency, call 911 or your local emergency number.
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