There are many reasons why there is hard skin on the pubic area, generally considered to be caused by the stimulation of adverse factors, ringworm, eczema, inflammatory skin diseases, gynecological inflammation and other reasons. 1. Adverse factors stimulation: both men and women can appear, such as men to underwear allergies, women to sanitary napkins, pads and other substances caused by friction stimulation. 2. Ringworm: both men and women can appear, due to fungal infection, can be manifested as local skin itching, peeling symptoms, and accompanied by blister-like changes. 3. Eczema: both men and women can appear, due to allergies or contact with some physical and chemical factors, there can be vulvar, pubic skinning performance with itching. 4. Inflammatory skin diseases: both men and women can appear, due to local infections and other factors can appear on the pubic skin, accompanied by redness, swelling and pain in the skin and other manifestations. 5. Gynecological inflammatory diseases: limited to women, such as cervicitis, vaginitis and so on, leading to increased vaginal secretions, local stimulation can also cause itching, eczema, skin and other uncomfortable symptoms. Need to go to the hospital, a clear diagnosis of the cause of the targeted treatment, you can not just randomly use drugs.