Swollen foreskin, consider with trauma, glans, allergies and other factors related to the need to go to the hospital for further examination to clarify the cause of the disease, timely consultation. 1. Trauma: usually due to men in masturbation or sexual intercourse, too much force, resulting in localized damage to the foreskin, which in turn causes the phenomenon of swelling of the foreskin, trauma may appear pain, redness and swelling and other symptoms. 2. glans: usually due to the lack of attention to local hygiene and cleanliness, unclean sex and other factors, leading to the glans around the stimulation of inflammatory media, which in turn caused the phenomenon of swelling of the foreskin, glans usually appear edematous erythema, irritation and pimples and other symptoms. 3. Allergy: usually due to the skin around the glans is stimulated by allergens, the phenomenon of swollen foreskin, and there will be fever, itching, pain and other symptoms. If the phenomenon of swollen foreskin, should be scientific regular work and rest, work and rest, appropriate exercise, reasonable diet, maintain local hygiene and cleanliness, to prevent re-infection, to avoid excessive prohibition or excessive pressure.