Repeated cracking of male skin may be physiological reasons, but also may be caused by lack of vitamins, ringworm and other diseases, should be timely consultation to clarify the cause of the disease. 1. Physiological causes of skin cracks are generally in a dry and cold environment or long-term contact with chemicals, skin locking function decline caused by dry skin cracks. 2. Vitamin deficiency: such as keratitis caused by dry skin cracks occurring at the corners of the mouth, generally the lack of vitamin B2 or always lick the lips caused by dry air. 3. ringworm caused by skin cracks occurring in the palms of the hands and feet, is the skin is fungal infection, fungal metabolites stimulate the skin caused by. Men with repeated skin cracks should be timely in, follow the doctor’s instructions for treatment.