Skin cyst
An epidermal (skin) cyst is a small, round lump in the top layer of skin called the epidermis. It may be filled with a soft, yellow substance called keratin. Skin cysts most often appear on the face, ears, back, or chest. But they can appear on almost any part of the body.
When you have an skin cyst, the lump or bump under the skin is:
- Small, round, and smooth.
- About the size of a pea, or a little smaller or larger.
- Yellow, white, or skin-colored. It can turn red if it becomes inflamed.
- Painless. But it can be painful if it's inflamed.
An infected cyst will need to be treated by a doctor. This may involve opening it to let the contents out. It may also include taking antibiotics.
If a cyst is inflamed but not infected, or you are bothered by how the cyst looks, your doctor may treat or remove it.
What are the signs and symptoms of skin cysts?
An epidermal (skin) cyst is a small, round lump in the top layer of skin called the epidermis. It may be filled with a soft, yellow substance called keratin. Skin cysts most often appear on the face, ears, back, or chest. But they can appear on almost any part of the body.
When you have a skin cyst, the lump or bump under the skin is:
- Small, round, and smooth.
- About the size of a pea, or a little smaller or larger.
- Yellow, white, or skin-colored. It can turn red if it becomes inflamed.
- Painless. But it can be painful if it's inflamed.
How can you care for yourself when you have a skin cyst?
- Do not squeeze the cyst or poke it with a needle to open it. This can cause swelling, redness, and infection.
- Always have a doctor look at any new lumps you get to make sure that they are not serious.
- If you had stitches, you may get other instructions. You will have to come back to have the stitches removed.
Skin cyst in children: When to call
Call your doctor now or seek immediate medical care if:
- Your child has signs of infection, such as:
- Increased pain, swelling, warmth, or redness.
- Red streaks leading from the area.
- Pus draining from the area.
- A fever.
Watch closely for changes in your child's health, and be sure to contact your doctor if:
- The cyst is growing or changing.
- Your child does not get better as expected.
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