How much skin should I take for scalp biopsy?
Four millimeters. According to the doctor's website, scalp biopsy should be taken to the depth of subcutaneous adipose tissue, including hair follicles, with a depth of at least 4 mm. The size of skin biopsy samples depends on the type and scope of the disease. Skin biopsy is a medical diagnosis method, which examines skin tissue by sampling to determine the type and degree of skin diseases.