Epidermal Cyst on the Scalp Induced by Forceps Injury During Delivery: A Case Report and Epidemiological Analysis of 3949 Patients.

Our case offers clinical evidence to the theory which refers trauma as one of the main causes of epidermal cysts in hair-bearing area. According to analysis of large number of samples, we can further support the idea that epidermal cyst has equal sex predilection and mainly occurs on the young and middle-aged adults. It is usually solitary and most likely to be found on face and trunk.