A dermatofibroma is a round, brown or reddish purple growth that can be found anywhere on the body, but most commonly appears on the legs or other frequently exposed areas. They often feel hard under the skin.
The causes for dermatofibromas may vary, but they are often a result of minor injuries such as bug bites or splinters. They are known to be benign, not harmful or cancerous, but a biopsy may be used to confirm this. Because they are not life threatening and not harmful, they are often best left alone. Surgery may remove the dermatofibroma, but the scar is often worse than the lump because it is often very deeply rooted in the skin. If it interferes with shaving or is frequently irritated by clothing, it may be shaved down, frozen, or "punched" to deflate it. However, this process is not permanent and the dermatofibroma may reappear. If you have been diagnosed with a dermatofibroma, talk to a doctor or dermatologist to discuss the most current treatment options.