The characteristics of the male urethra include a longer urethra, two physiological curves as well as three strictures, and the male urethra also has the ability to ejaculate, which is analyzed as follows. 1. male urethra is relatively long: the average length of the male urethra is 16 ~ 20cm, compared with women longer, the male urethra is divided into anterior urethra and posterior urethra, the anterior urethra including urethra spongy body, the posterior urethra is the urethra of the prostate gland part and the membrane part. 2. The male urethra has two bends and three strictures: the male urethra is divided into the pubic bone as the boundary, and the pubic bone is divided into the lower pubic bone bend and the pubic bone is divided into the anterior pubic bone bend, the male urethra has three strictures are located in the urethra internal mouth, the urethra external mouth, as well as the urethra of the membrane part. 3. The male urethra also has the ability to ejaculate: the male vas deferens converge on the male urethra, thus the urethra is the male ejaculation site, vital to the male. If the male urethra appears abnormal discomfort, should go to the hospital for examination and treatment.