"Skin barnacle" is a colloquial term for seborrheic keratosis, a common, noncancerous skin growth. These growths are often wart-like and appear on the skin as we age. They are usually harmless and don't require treatment, but they can be removed for cosmetic reasons.
Seborrheic keratoses are often described as "barnacles" because they can resemble the marine crustaceans that attach themselves to surfaces like ship hulls. They can be various colors, including brown, black, and flesh-toned, and may have a waxy or greasy texture.
While most seborrheic keratoses are harmless, it's essential to consult a dermatologist if you notice any changes in a skin growth, such as:
- Rapid growth
- Bleeding
- Itchiness
- Pain
These changes may indicate a more serious condition, such as skin cancer.