Male urethra with skin lesions, mainly consider the local mucosal damage caused by the corresponding condition of the causes mainly include infection, stones, trauma and tumors. 1. infection: urinary tract infection, there will be mucosal edema, oozing, and cause local ulceration, causing skin lesions. 2. Stones: the urinary tract stones, in the process of discharging may scratch the urethral wall, causing corresponding symptoms. 3. Trauma: direct external injury can cause direct damage to the mucous membrane, further leading to the appearance of skin lesions. 4. Tumor: some tumor lesions can also cause mucosal breakdown, resulting in corresponding changes. Once you find urinary tract lesions, and accompanied by urinary pain and discomfort and other symptoms, you need to consult a doctor in time to observe and diagnose the condition, and then carry out standardized treatment under the guidance of the clinician to avoid delays in the condition.