What Is Argyria? A Plain-Language Guide to the Condition That Turns Skin Blue-Gray from Silver Buildup
Updated: 2 days ago
Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026
Quick Answer
Argyria is a rare condition in which silver builds up in the body to toxic levels, turning the skin, mucous membranes and nails blue-gray. [1] It mostly affects silver workers and people taking colloidal silver long-term. [1] [4] A skin biopsy is the most effective test. [1] [4] It is difficult to reverse; stopping silver products comes first, and laser therapy helps some cases. [1] [5]
What the research says
Laser therapy can clear pigment in some patients, but the evidence is thin. A systematic review of six published articles (case reports and one case series) found that a 1064 nm Q-switched Nd:YAG laser offered immediate, effective pigment clearing in people with argyria, with no long-term adverse effects reported. The authors note the evidence is limited to a small number of reports (Griffith et al., J Eur Acad Dermatol Venereol, 2015) [5].
Silver in medical devices can cause local argyria, though it was uncommon. A systematic review and meta-analysis of 19 studies of silver-coated orthopedic megaprostheses reported local argyria in 8 of 357 patients (2.2%), with no systemic complications and blood and local silver levels far below the toxicity threshold (Fiore et al., Eur J Orthop Surg Traumatol, 2021) [6].
What Is Argyria?
Argyria is a condition that causes your skin and mucous membranes (the lining of parts of your body) to turn blue to gray. [1] This is the result of silver building up in your body. [1] You can develop it with frequent exposure over time to microscopic silver compounds that absorb into your body.
Silver is an element found in the Earth's crust. It has many uses and can be formed into jewelry, tableware, mirrors, and batteries. Microscopic metal particles surround us every day — in the air, the food you eat, the water you drink, in dental fillings, and in some medicines and supplements. You carry small amounts of silver in your body at all times. Symptoms appear when there's too much silver in your body.
Argyria isn't common, because the use of silver in manufacturing and medicine declined significantly in the 21st century. [1] [4] People who work with silver or use colloidal silver as a dietary supplement are most at risk of developing it. [1]
What Does It Look Like?
The symptoms of argyria include your skin turning blue-gray or gray [1], your skin being darker in sun-exposed areas (a condition called hyperpigmentation, or skin darkening) [1] [4], your fingernails being darker than normal [1], and small bumps (called macules) forming on a patch of skin that's blue to gray. [1]
Early signs of the condition can begin in your mouth, where sections of your gums could appear brownish-gray before the condition spreads to your skin. [1]
Your symptoms could vary based on how much silver is in your body, how the silver entered your body, and the length of time the silver has been in your body.
A buildup of silver in your body can also cause additional symptoms: abdominal pain, fatigue, headaches, kidney damage, resistance to certain medications, skin irritation, and seizures. [1] [2]
When Should You See a Doctor?
Visit your healthcare provider if you have symptoms of argyria. Early detection and avoidance of silver prevent symptoms from spreading throughout your body. [1]
What Causes Argyria?
Silver toxicity causes argyria. Toxicity occurs when too much silver is in your body. [1] Your body naturally holds very small amounts of silver and other metals. Toxicity usually happens when you're exposed to silver particles for a long period of time.
Silver can enter your body three ways: by absorption (through your skin), by inhalation (into your lungs when you breathe through your nose and mouth), and by ingestion (into your stomach through the foods and beverages you eat or drink, or through the medications or supplements you take). [1]
How Do I Get Silver Exposure?
Silver exposure occurs when microscopic silver deposits absorb into your body, normally over a long period of time. Importantly, you can't get silver exposure by eating with a silver fork or wearing jewelry. [1]
You can get silver exposure by working with elemental silver on the job (occupational exposure) [1] — this affects people who mine silver or work in a manufacturing facility that adds silver to products. You can also get it by taking medications or dietary supplements that include silver salts, colloidal silver, or silver acetate [1]; long-term use of certain products containing small amounts of silver can cause the condition. A third route is medical: receiving a surgical procedure that used silver sutures to stitch a wound, or receiving dental fillings made with amalgam (a silver-containing filling material). [1] [4]
Exposure route | Examples |
Occupational (on the job) | Mining silver [4]; working in a manufacturing facility that adds silver to products |
Supplements and medicines | Long-term use of products with silver salts, colloidal silver, or silver acetate [1] |
Medical procedures | Surgery with silver sutures; amalgam (silver-containing) dental fillings [1] |
How Is Argyria Diagnosed?
Your provider will diagnose argyria after a complete medical history and a physical exam [1] to learn more about your symptoms. Your provider might ask questions to see if you recently had exposure to metals or if you used any products that contain silver compounds.
Tests could confirm your diagnosis and rule out other conditions. A skin biopsy is the most effective test [1] [4]: your provider removes a small sample of your skin tissue that's gray or blue and examines it for silver deposits under a microscope.
Step | What happens |
Medical history | Provider asks about metal exposure and products containing silver compounds |
Physical exam | The blue-gray skin, nails, and any mouth changes are examined |
Skin biopsy |
How Is Argyria Treated?
Treatment for argyria is challenging for healthcare providers, because it's difficult to reverse the changes to your skin after they appear. [1]
If you receive an argyria diagnosis, your provider will recommend you stop using any products that contain silver [1], including medicines, eye drops, or supplements. If you work in an environment where silver is present, your provider will recommend you wear personal protective equipment while at work [1], which could include gloves, eye protection, and/or a mask.
Treatment with chelating agents — medicines that remove metals from your body — doesn't work well with argyria. [1] [4]
Some cases of argyria skin discoloration improve with laser therapy. [1] [5] Laser therapy is a technique where your provider uses a powerful light on your skin where symptoms appear to destroy existing skin tissue. This helps your body produce new, healthy skin tissue.
Treatment approach | How it works | How well it works |
Stop silver exposure | Stop all products containing silver (medicines, eye drops, supplements) [1]; use protective equipment at work | The essential first step — prevents symptoms from spreading |
Chelating agents | Medicines that remove metals from your body | |
Laser therapy | A powerful light destroys existing skin tissue so your body produces new, healthy tissue | |
Research | Ongoing studies to learn more about treatment options [1] | Results may range from somewhat effective to not effective at all, since discoloration can be irreversible |
How Do I Manage My Symptoms?
Your symptoms of skin discoloration could increase with ultraviolet (UV) exposure from the sun. [1] To avoid further discoloration, wear protective clothing or accessories when outdoors and wear sunscreen daily [1]. If you're active outside, reapply sunscreen throughout the day when you start to sweat or if your skin gets wet.
You can use makeup to temporarily cover up areas of your skin where you have symptoms of argyria. [1] Make sure you wash off the makeup at the end of the day to prevent clogging your pores.
How Can I Prevent Argyria?
You can reduce your risk of developing argyria by not using products that contain silver [1]; wearing personal protective equipment if you work with elemental silver; wearing sunscreen to prevent your skin from getting darker from sun exposure (hyperpigmentation); talking to your provider if you take a medicine that contains silver; and asking your dentist before changing amalgam fillings, since the FDA does not recommend removing amalgam fillings that are in good condition.
What Can I Expect in the Long Run?
Argyria can be difficult to treat, and symptoms may be irreversible. [1] [2] [3] You can wear makeup to temporarily cover up the blue-gray tone of your skin if treatment is ineffective.
Talk to your provider before using any products or supplements that contain trace amounts of silver, especially colloidal silver. If you work with silver at your job, talk to your employer about steps you can take to protect yourself from silver compounds in your workplace by wearing personal protective equipment.
How Should You Prepare for Your Appointment?
It may be helpful to ask your provider the following questions: Should I get my amalgam fillings replaced? How can I protect myself from silver at work? Is laser therapy right for me? Are there side effects of the treatment? [1]
Before your visit, make a list of every supplement, medicine, and product you use — especially anything with silver salts, colloidal silver, or silver acetate in the ingredients — and note where you work and whether your job involves silver. That exposure history is exactly what your provider will ask about, and early detection plus silver avoidance can keep symptoms from spreading.
The Bottom Line
Argyria is a rare but striking condition: when microscopic silver compounds build up in your body at toxic levels over years of exposure, your skin, mucous membranes, and nails turn blue-gray. Everyone already carries trace silver from air, food, water, and everyday products — the condition develops when that amount climbs too high, most often through occupational exposure (mining, silver-added manufacturing) or long-term use of colloidal silver and other silver-containing supplements and medicines. The warning signs are visible and distinctive: blue-gray skin that darkens further in the sun, darker fingernails, small bumps on gray patches, and sometimes brownish-gray gums as an early signal. A skin biopsy — examining a sample of gray-blue skin for silver deposits under a microscope — is the most effective way to confirm the diagnosis. Once diagnosed, the first move is to cut off the silver source completely; chelating agents don't work well, and because the discoloration can be irreversible, laser therapy is the main option that improves some cases. Prevention is the most powerful tool: avoid silver-containing products, use protective equipment around elemental silver, and wear sunscreen every day. If you notice unexplained blue-gray skin changes, see your provider early — catching it early and avoiding silver can prevent the discoloration from spreading.
Take the Next Step
If your skin, gums, or nails are taking on an unexplained blue-gray or gray tone — especially if you work with silver or take colloidal silver or silver-containing supplements — make an appointment with your healthcare provider. Early detection and avoiding silver can stop the discoloration from spreading through your body. Until then, stop using any product that contains silver, wear sunscreen daily and reapply it when you sweat or get wet, and cover up in the sun to keep the discoloration from deepening. If you work with silver, talk to your employer about protective equipment, and ask your provider whether laser therapy could help your specific case.
Frequently Asked Questions
What is argyria?
A rare condition in which deposits of silver build up in your body at toxic levels, turning your skin, mucous membranes (the lining of parts of your body), and nails blue-gray. It results from long-term exposure to microscopic silver compounds that absorb into your body.
How rare is it?
It isn't common, because the use of silver in manufacturing and medicine declined significantly in the 21st century. People who work with silver or use colloidal silver as a dietary supplement are most at risk.
What are the three types?
Generalized argyria affects your entire body or large areas of skin. Localized argyria affects a small part of your body or one skin area. Argyrosis affects your eye or eyes only.
What are the main symptoms?
Skin turning blue-gray or gray; skin darker in sun-exposed areas (hyperpigmentation); darker fingernails; and small bumps (macules) forming on a blue-gray patch of skin. Early signs can appear as brownish-gray sections of the gums before spreading to the skin.
Can silver buildup cause other symptoms?
Yes — additional symptoms can include abdominal pain, fatigue, headaches, kidney damage, resistance to certain medications, skin irritation, and seizures.
Does eating with silverware or wearing jewelry cause it?
No. You can't get silver exposure by eating with a silver fork or wearing jewelry.
How does silver get into my body?
Three routes: absorption (through the skin), inhalation (into the lungs when you breathe), and ingestion (into the stomach through foods, beverages, medications, or supplements). Toxicity usually happens after long-term exposure to silver particles.
Who is most at risk?
People who mine silver or work in manufacturing facilities that add silver to products, and people who take medications or supplements containing silver salts, colloidal silver, or silver acetate long-term. Surgery with silver sutures and amalgam dental fillings are also exposure routes.
How is it diagnosed?
Through a complete medical history (including questions about metal exposure and silver-containing products) and a physical exam, confirmed by a skin biopsy — the most effective test. The provider removes a small sample of gray-blue skin tissue and examines it for silver deposits under a microscope, which also helps rule out other conditions.
Can it be cured?
Treatment is challenging, because it's difficult to reverse the skin changes after they appear. Symptoms may be irreversible, and research into better treatments is ongoing.
What are the treatment options?
First, stop all silver-containing products (medicines, eye drops, supplements) and use protective equipment at work if you're exposed to silver. Chelating agents (medicines that remove metals from your body) don't work well with argyria. Laser therapy — a powerful light that destroys existing skin tissue so your body produces new, healthy tissue — improves some cases.
Does the sun make it worse?
Yes — skin discoloration can increase with ultraviolet (UV) exposure from the sun. Wear protective clothing or accessories outdoors and wear sunscreen daily, reapplying when you sweat or your skin gets wet.
Can I cover it up?
You can use makeup to temporarily cover affected areas — just wash it off at the end of the day to prevent clogging your pores.
How do I prevent it?
Don't use products that contain silver; wear personal protective equipment if you work with elemental silver; wear sunscreen to prevent further darkening; talk to your provider if you take a medicine that contains silver; and ask your dentist before changing amalgam fillings; the FDA does not recommend removing fillings that are in good condition.
When should I see a doctor?
Visit your healthcare provider if you have symptoms of argyria — early detection and avoidance of silver prevent symptoms from spreading throughout your body.
What questions should I ask my doctor?
Should I get my amalgam fillings replaced? How can I protect myself from silver at work? Is laser therapy right for me? Are there side effects of the treatment?
Medical Disclaimer
This guide is for general information only and is not a substitute for professional medical advice, diagnosis, or treatment. If you notice unexplained blue-gray skin changes, see a healthcare provider — early detection and silver avoidance can prevent symptoms from spreading. Always seek the advice of a physician or other qualified health provider with any questions about a medical condition. Never disregard professional medical advice or delay seeking it because of something you have read here.
Related Reading
Heavy Metal Poisoning: Symptoms, Sources, and Treatment explains how metals build up in the body and are treated.
Cyanosis: Symptoms, Causes, Types, Diagnosis, and Treatment — A Complete Guide explains blue skin caused by low oxygen and when it is urgent.
Acrocyanosis: What Causes Blue or Gray Hands and Feet, and When to Worry covers blue or gray hands and feet and when to worry.
Skin Biopsy: Types, What to Expect, Results and Aftercare explains the skin sample test used to confirm skin pigment changes.
References
Cleveland Clinic. Argyria. Cleveland Clinic. Last updated July 28, 2023. https://my.clevelandclinic.org/health/diseases/25163-argyria
Morantz C, Torrey B. Practice Guideline Briefs: Consumer Advisory on Colloidal Silver Products. Am Fam Physician. 2004;70(6):1174. https://www.aafp.org/afp/2004/0915/p1174
National Center for Complementary and Integrative Health. Colloidal Silver: What You Need To Know. NCCIH. Last updated April 2023. https://www.nccih.nih.gov/health/colloidal-silver-what-you-need-to-know
Jerger SE, et al. Argyria. In: StatPearls [Internet]. StatPearls Publishing. Last updated August 8, 2023. PMID 33085270. https://www.ncbi.nlm.nih.gov/books/NBK563123/
Griffith RD, et al. 1064 nm Q-switched Nd:YAG laser for the treatment of Argyria: a systematic review. J Eur Acad Dermatol Venereol. 2015;29(11):2100-3. PMID 25845405. https://doi.org/10.1111/jdv.13117
Fiore M, et al. Silver-coated megaprosthesis in prevention and treatment of peri-prosthetic infections: a systematic review and meta-analysis about efficacy and toxicity in primary and revision surgery. Eur J Orthop Surg Traumatol. 2021;31(2):201-220. PMID 32889672. https://doi.org/10.1007/s00590-020-02779-z
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