What causes men to urinate forked, first, masturbation or sex after urination forked, mainly because after ejaculation part of the semen residue in the urethra, the spongy body congestion has not completely disappeared, thus leading to poor urine flow, coupled with excessive tension in the urethral sphincter, spasm, it will feel uncomfortable urination, is a normal physiological reaction. The more common reasons for urine splitting when urinating. Secondly, many people wake up after a sleep, urine will be split. This is because after a full night’s sleep, a large amount of urine accumulates in the bladder, resulting in high pressure in the bladder, the force of urine discharge, so that the shape of the urethra temporarily changed. The human urethra is like a collapsed water pipe when there is no urine or semen passing through, and there will be a short period of discomfort when there is urine passing through. In addition, a lot of alcohol sexual impulses and so on can also lead to prostate congestion, which leads to poor urination and the occurrence of urinary diversion. Third, if it is often or long-term urinary bifurcation, it may be related to the urogenital system diseases. Such as urethritis prostatitis, etc. As the urethra is congested and swollen, secretions increase, the flow of urine will be affected, and chronic inflammation will shadow the formation of spots, so that urine can not be discharged smoothly. In addition to the bifurcation of the urine line, these diseases are often accompanied by symptoms such as frequent urination, urgency and painful urination. In addition, stones in the urethra, circumcision, and phimosis can also cause partial narrowing of the external urethral opening and bifurcation of urine.