When the prostate gland increases in size, it can block the urethra, causing an increase in pressure in the urethra, which can lead to symptoms of straining to urinate, while the gland protrudes into the urethral cavity and bladder cavity, thus causing the urethral cavity to be unrounded, which can lead to a local bulge when urinating. The phenomenon of bifurcation, serious patients can even appear dripping urine or unable to urinate, etc., need to carry out urological ultrasound to further identify; 2, if it is a woman or suddenly and sharply appear urinary bifurcation, weakness, etc., it is necessary to consider the presence of urethral stones, urethral meatus and other symptoms, when the stone obstruction in the urethra, can appear laborious, urinary bifurcation phenomenon, accompanied by the urethra in the Pain, in the case of women, routinely requires examination of the external urethra to find out if there is a urethral meatus obstructing the urethra or partially obstructing the urethra, causing the patient to experience symptoms such as bifurcation of urination and weakness of urination.