### What are Dermatofibromas? Dermatofibromas are small, noncancerous growths that appear on the skin. These growths are usually firm to the touch and can vary in color from pink to reddish-brown. They typically measure between 7 to 10 millimeters in diameter but can be smaller or larger. ### Causes The exact cause of dermatofibromas is not well understood. They are believed to develop due to an overgrowth of a mixture of different cell types in the dermis layer of the skin. Minor skin injuries, such as punctures from splinters or bug bites, may trigger their formation. Age is also a risk factor, with these growths occurring more commonly in adults aged 20 to 49. Women and individuals with a suppressed immune system may be at higher risk. ### Symptoms Apart from the visible bumps on the skin, dermatofibromas rarely cause additional symptoms. They can be mildly sensitive to the touch but are generally harmless. ### Diagnosis A dermatologist can usually diagnose dermatofibromas through a physical exam and visual inspection. In some cases, a skin biopsy may be performed to rule out other conditions like skin cancer. ### Treatment Since dermatofibromas are benign and harmless, treatment is often for cosmetic reasons. Treatment options include: - **Freezing (Cryotherapy):** This method may not completely remove the growth and it can return to its original size. - **Surgical Excision:** This can completely remove the dermatofibroma but may result in scarring. ### Precautions Never attempt to remove a dermatofibroma at home, as this can lead to infection, scarring, and excessive bleeding. ### Conclusion Dermatofibromas are generally harmless and do not negatively affect a person's health. While removal methods like freezing and excision have varying degrees of success, the growths can often grow back. Researchers do not currently know exactly why dermatofibromas occur, and there is no sure way to prevent them from developing.