Male medicine is developed from the branch of urology, mainly including male reproductive system diseases, common male diseases are as follows: a. Prostate diseases: such as prostate hyperplasia (commonly known as prostate hypertrophy), prostatitis, prostate cancer; b. Seminal vesicle diseases: such as vesiculitis, hematospermia, seminal vesicle tumor; c. Urethral diseases: such as hypospadias, urethral tumor, genitourinary tract inflammation (urinary tract infection), urethral injury, urethral Stenosis, urethral stones, urethral foreign bodies; IV. Penile diseases: circumcision, prepuce, occult penis, short penis, penile cancer, glansitis, sexually transmitted diseases, sexual dysfunction, premature ejaculation; V. Scrotal contents and vas deferens diseases: cryptorchidism, testicular tumor, testicular adnexitis, testicular injury, testicular torsion, testicular syringomyelia, scrotal inflammation, scrotal tumor, varicocele, male Infertility, etc.