Understanding Pretibial Myxedema (Graves' Dermopathy): Symptoms and Care

Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026

Quick Answer

Pretibial myxedema, also known as Graves' dermopathy, is a skin condition causing thick, scaly plaques and swelling, mainly on the lower legs and shins. It is most common in people with Graves' disease and results from an autoimmune buildup of sugar compounds in the skin. It may resolve on its own, and compression and topical medications help. [1]

What the research says

• Dermopathy is uncommon, even among people with Graves' disease. A clinical review reports that Graves' orbitopathy, thyroid dermopathy (pretibial myxedema) and acropachy occur in about 25%, 1.5% and 0.3% of Graves' patients, respectively. Dermopathy is usually present only when the person also has orbitopathy, and it is usually managed with local glucocorticoid treatment (PubMed: Bartalena & Fatourechi, J Endocrinol Invest, 2014) [2].

• Many mild cases clear on their own. A clinical review of pretibial myxedema found that in mild cases that do not need treatment, about 50% of patients reach complete remission after several years, while severe cases treated with topical corticosteroids or other therapies did not do better than untreated milder cases. Topical corticosteroids under an occlusive dressing were beneficial in symptomatic cases (PubMed: Fatourechi, Am J Clin Dermatol, 2005) [3].

• Starting treatment early may matter. In a small case series of 6 people with pretibial myxedema, topical triamcinolone under an occlusive dressing worked in the 2 who started within several months of onset, but gave no benefit in the 4 who started 5–10 years after onset (PubMed: Takasu et al., Intern Med, 2010) [4].

What Is Pretibial Myxedema?

Pretibial myxedema is a rare but distinct skin manifestation of Graves' disease, an autoimmune condition that typically affects the thyroid gland. Clinically known as Graves' dermopathy, it involves the accumulation of complex sugar compounds, such as glycosaminoglycans, deep within the skin layers. This buildup leads to visible changes, including swelling (edema), firm lumps, and the formation of thick, scaly plaques, primarily affecting the anterior portion of the lower legs, or the shins. [1]

The condition is most prevalent among adults aged 40 to 60 and is more frequently diagnosed in females. While it is strongly associated with Graves' disease, it can also appear in individuals with other thyroid conditions, such as hypothyroidism or hyperthyroidism, and those with severe thyroid-related eye disease. [1]

Type	Description	Frequency / characteristics
Diffuse	Non-pitting swelling of the lower leg.	Most common form.
Plaque	Raised, thick, and scaly plaques alongside swelling.	Common clinical presentation.
Nodular	Firm, distinct lumps (nodules) forming under the skin.	Often accompanies edema.
Elephantiasic	Severe lymphatic fluid buildup with a warty texture.	Rarest and most severe form.

Figure 1: Clinical presentation of pretibial myxedema on the shin.

What are the symptoms of pretibial myxedema (Graves' dermopathy)?

The symptoms of pretibial myxedema are usually localized to the lower legs, feet, and shins. The most characteristic sign is the development of firm, waxy skin that may resemble the texture of an orange peel due to prominent hair follicles. These changes are often accompanied by significant swelling that does not leave an indentation when pressed, a feature known as non-pitting edema. [1]

Early symptoms of pretibial myxedema include a lump on your skin that's firm. This lump can change in size or merge with other lumps. — Cleveland Clinic [1]

Commonly reported symptoms include:

• Skin texture changes: Shiny, waxy, or thick plaques that may feel firm to the touch. [1]

• Discoloration: Affected areas may shift in color, ranging from yellow and orange to deeper shades of red, purple, or brown. [1]

• Associated sensations: Some individuals experience sore or itchy skin, while others may notice increased sweating or hair growth in the affected areas. [1]

What causes pretibial myxedema, and what autoimmune triggers are involved?

The exact mechanism behind the buildup of sugar compounds in the skin is not fully understood, but research points toward an autoimmune response. In individuals with Graves' disease, the immune system mistakenly produces antibodies that stimulate cells to overproduce glycosaminoglycans. These compounds then accumulate in the dermis and hypodermis, the deeper layers of the skin, leading to the characteristic swelling and plaques. [1]

Trigger factor	Mechanism of action
Autoimmune response	TSH receptor antibodies trigger excessive compound production.
Immune cell activation	T lymphocytes release cytokines that stimulate skin cells.
Injury response	Physical trauma to the shins can trigger localized immune cell clustering.

Interestingly, physical injury to the lower legs can sometimes trigger the onset or recurrence of pretibial myxedema. This is particularly common in individuals whose thyroid hormone levels are not well-regulated, as these hormones play a crucial role in preventing the buildup of these compounds in the tissues. [1]

Figure 2: How the autoimmune process of Graves' disease reaches the skin.

How is pretibial myxedema (Graves' dermopathy) diagnosed?

Healthcare providers typically diagnose pretibial myxedema through a combination of a physical examination and a review of the patient's medical history, especially regarding thyroid health. [1] During the exam, the provider will assess the texture, color, and firmness of the skin plaques.

To confirm the diagnosis and rule out other conditions, such as erythema nodosum, several tests may be performed:

• Thyroid function tests: Blood tests to measure hormone levels and check for thyroid dysfunction. [1]

• Skin biopsy: A small sample of skin tissue is removed and examined under a microscope to detect high levels of glycosaminoglycans. [1]

• Differential assessment: Ensuring the symptoms are not caused by small, painful bumps characteristic of other inflammatory skin conditions. [1]

What are the treatment options for pretibial myxedema?

For many individuals, pretibial myxedema is primarily a cosmetic concern and may not require active treatment. In mild cases, the condition often clears up on its own over several years. [1] [3] However, if the symptoms are bothersome or severe, various management strategies are available to reduce swelling and improve the skin's appearance. [1]

Figure 3: Everyday management of pretibial myxedema, from compression to topical treatment.

Common treatment approaches include:

• Compression therapy: Wearing compression socks or stockings is one of the most effective ways to reduce leg swelling and improve comfort.

• Topical medications: Corticosteroid creams or ointments are frequently used to manage inflammation, itching, and plaque thickness. [1]

• Advanced interventions: For severe cases, providers may recommend oral medications like pentoxifylline to improve blood flow, or specialized injections and infusions to reduce lump size and regulate the immune response. [1] [3]

• Underlying condition management: Effectively treating Graves' disease or other thyroid imbalances is essential for long-term skin health. [1]

It is important to note that surgical removal of the plaques is generally not recommended. Because the body may perceive surgery as an injury, there is a high risk that the condition will return at the site of the incision once it begins to heal. [1]

Conclusion and Next Steps

Pretibial myxedema is a manageable skin condition that serves as a visible indicator of underlying thyroid health. While the prognosis is generally good, individuals experiencing these skin changes should consult a healthcare provider for a proper diagnosis and to ensure their thyroid levels are well-managed. By combining professional medical care with simple strategies like compression therapy, most people can effectively manage the symptoms and maintain their quality of life.

Frequently Asked Questions

1. Is pretibial myxedema contagious?

No, it is an autoimmune skin condition and cannot be spread from person to person.

2. Does everyone with Graves' disease get this skin condition?

No, pretibial myxedema affects only a small percentage of people diagnosed with Graves' disease. [2]

3. Can the condition go away on its own?

Yes, mild cases often resolve without treatment, though it may take several years. [1] [3]

4. Why is it called "pretibial"?

The term refers to the front of the tibia, or the shin bone, which is the most common area affected. [1]

5. What is the difference between pretibial myxedema and erythema nodosum?

Pretibial myxedema causes thick, scaly plaques, while erythema nodosum typically causes small, painful bumps. [1]

6. Can smoking make the condition worse?

Smoking is a known risk factor and can increase the likelihood of developing thyroid-related conditions.

7. Are compression socks helpful?

Yes, compression socks are a primary recommendation for reducing the swelling associated with the condition.

8. Is surgery a good option for removing the plaques?

Surgery is usually not recommended because the condition often returns at the site of the surgical injury. [1]

9. What does "orange peel" skin mean?

The term "orange peel" skin refers to a texture where the skin is thick and shiny with prominent, waxy hair follicles, resembling the surface of an orange. [1]

10. How is the condition diagnosed?

Diagnosis involves a physical exam, thyroid blood tests, and sometimes a skin biopsy to check for compound buildup. [1]

Related Reading

Graves' Disease: How an Overactive Immune System Drives an Overactive Thyroid, and What Treatment Can — and Can't — Do explains the autoimmune thyroid disease behind most cases.

Thyroid Eye Disease: Symptoms, Stages, Treatment and Warning Signs explains eye changes that often appear alongside Graves' dermopathy.

Hyperthyroidism: Symptoms, Causes & Treatment explains an overactive thyroid and how it is treated.

Thyroid Tests: Blood Tests, Imaging Scans and What Your Results Mean describes blood tests that check how well your thyroid works.

References

1. Cleveland Clinic. Pretibial Myxedema (Graves' Dermopathy). Cleveland Clinic. Last updated Dec. 9, 2022. https://my.clevelandclinic.org/health/diseases/24514-pretibial-myxedema

2. Bartalena L, Fatourechi V. Extrathyroidal manifestations of Graves' disease: a 2014 update. J Endocrinol Invest. 2014;37(8):691-700. PMID: 24913238. https://doi.org/10.1007/s40618-014-0097-2

3. Fatourechi V. Pretibial myxedema: pathophysiology and treatment options. Am J Clin Dermatol. 2005;6(5):295-309. PMID: 16252929. https://doi.org/10.2165/00128071-200506050-00003

4. Takasu N, Higa H, Kinjou Y. Treatment of pretibial myxedema (PTM) with topical steroid ointment application with sealing cover (steroid occlusive dressing technique: steroid ODT) in Graves' patients. Intern Med. 2010;49(7):665-669. PMID: 20371956. https://doi.org/10.2169/internalmedicine.49.2617

Medical Disclaimer

This article is for informational purposes only and does not constitute medical advice. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read here.