Gottron papules are red, purple or dark bumps that often appear over your knuckles, elbows or knees. They’re a key sign of dermatomyositis, a rare condition that affects both your skin and muscles. If you notice this rash — especially with new muscle weakness — talk to a healthcare provider.
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Gottron papules are a type of skin rash that causes small, raised bumps on your joints. They most often appear on the back of your hands over your knuckles. They can also appear on your toes, ankles, knees and elbows. The bumps are red to purple or darker than your natural skin tone.
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Gottron papules are important because they can help doctors diagnose dermatomyositis. This is a rare condition that affects your skin and muscles.
If you notice these bumps — especially with new muscle weakness — see a healthcare provider. Signs of muscle weakness include trouble standing from a chair or lifting objects. Dermatomyositis can sometimes affect other organs. While rare, in adults, it may be associated with cancer. Getting diagnosed and treated early can help manage symptoms and lower the risk of complications.
Gottron papules have several features, including:
They don’t usually cause pain. But they can itch or burn, and these feelings may get worse after sun exposure. Some people don’t notice any symptoms at all.
Your provider may use different terms to describe Gottron papules and related rashes:
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Gottron papules are a skin change that happens with dermatomyositis. This is a rare inflammatory condition that involves both your skin and muscles.
Gottron papules are often one of the first signs of dermatomyositis. When they show up at the start of the condition, they’re called “early Gottron papules.” These can appear before muscle weakness or other symptoms begin. If you see this, let a healthcare provider know so they can check what’s going on.
Gottron papules can also come and go. They may fade after appearing early, then return or get worse during symptom flare-ups (times when the condition becomes more active in your body).
Gottron papules may not go away completely, but treatment can help you manage their effects. Your provider will focus on treating dermatomyositis, the condition that causes the papules. They may recommend:
If you’re going outside, it’s important to protect your skin. Sun exposure can make papules worse. To lower your risk of irritation:
Because the exact cause of dermatomyositis isn’t known, there’s no sure way to prevent Gottron papules. But you can manage symptoms and reduce irritation. Your healthcare provider can recommend treatments that work best for your skin.
Tell a provider about any skin changes that don’t go away. You should also contact one if your symptoms get worse — especially if you notice both a rash over your joints and muscle weakness. These may be signs of dermatomyositis. A provider can examine you and explain what’s going on.
Dermatomyositis causes both Gottron papules and a heliotrope rash. Here’s the difference:
Your provider will look for these when making a diagnosis.
Gottron papules may look like a simple skin problem at first. A few bumps over your knuckles or other joints might feel more annoying than serious. But sometimes, they’re your body’s way of signaling that something bigger is going on.
That’s why it’s important not to ignore them, especially if you’re also feeling weak or tired. With the right care — from sun protection to anti-inflammatory treatments — you can find relief and manage the condition behind them.
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If something about your skin feels new or unusual, trust your instinct and talk with a healthcare provider. Getting care early can make a real difference.
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Dermatomyositis can cause skin rashes and lead to severe muscle damage. Cleveland Clinic can help manage your symptoms and provide lifelong care.

Last reviewed on 11/17/2025.
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