Penis soreness and swelling may be caused by overstimulation, prostatitis, circumcision and other factors. 1. excessive stimulation: such as excessive masturbation or frequent sex, will lead to penis soreness and swelling, should reduce the number of sexual intercourse, quit masturbation, can be improved by themselves. 2. Prostatitis: may be related to excessive sex, poor hygiene and other factors, can make the penis part of the symptoms of soreness, swelling and pain, may also be accompanied by urinary incontinence, urinary dribbling, urinary frequency, urinary urgency and other symptoms, can lead to sexual dysfunction in serious cases. 3. Circumcision and glansitis: men have a long foreskin, do not pay attention to the lower body hygiene, may induce circumcision and glansitis, due to inflammatory substances stimulation, will make the penile area soreness and swelling symptoms, accompanied by pain, itching. Soreness and swelling of the penis, and the presence of other abnormalities, it is recommended to consult a doctor for examination and treatment, to avoid delays in the condition.