Getting up in the morning to urinate forked may be physiological factors, acute injury, acute urethritis and other factors. 1. Physiological factors: the main consideration is that the number of urination at night, bladder filling is more obvious, high bladder pressure, compression of the bladder neck and the prostate gland to stimulate its peripheral nerves of erection, the penis is often in the state of erection or half-erection, which can compress the urethra to cause urinary diversion. In addition, after the morning erection, the spongy body of the penis has not fully restored the state of weakness is still in a relatively full state, will also press the urethra to cause urinary diversion. 2. Acute injury: in the night sex on the urethra caused damage, resulting in urethra local congestion and edema, in the morning when you get up to urinate may appear urine fork, may also be accompanied by mild swelling, redness and other symptoms. Getting up in the morning to urinate forked, and the presence of other abnormal manifestations, it is recommended that timely medical examination and treatment, to avoid causing other complications.