There are usually two kinds of urinary bifurcation: one is bifurcation immediately after urine comes out of the urethra, and the other is bifurcation after urine comes out of the urethra and then ejaculates for a while, and this situation is accompanied by incomplete urination. Commonly, patients with urethritis have bifurcation and difficulty in urination due to repeated attacks of inflammation, and after a long time some of the urethral lining tissues will form patches, causing partial narrowing of the urethra, which is typical of the sequelae of gonorrhea urethritis. During the onset of acute urethritis, the congestion, swelling and secretion of the urethra can also cause bifurcation of urination. The second is the patient with prostate enlargement, the patient with prostate enlargement can have a bifurcation of urination and a feeling of incomplete urination because of increased urethral resistance when urinating. The second one is that the patient who has an enlarged prostate gland will be able to urinate because of the increased resistance of the urethra.