Are cysts medical problems?
Most cysts are benign, remaining stable for years without any measurable change in appearance or symptoms. Some cysts, however, enlarge either slowly or rapidly and may become painful, inflamed or cosmetically distressing. Cysts may become infected and/or rupture, typically becoming red and exquisitely painful within days. Prompt medical attention is required. Although most cysts are benign, some lesions that appear to be cysts may instead be tumors, and they should be thoroughly evaluated. Signs of possible abnormal development include rapid growth and any appearance or behavior that seems unusual. How are cysts treated? Benign and unchanging cysts may not require any treatment, although careful and complete surgical excision may limit the possibility of future problems with the cyst, such as rupture or infection (see above). Excision can remove painful pilar cysts of the scalp. If the cyst is protuberant and unsightly, then removal for cosmetic reasons can be performed (see Surgery).