Pain in the anus to urinate may be due to the difficulty in urination caused by pain in the anus, and the cause of the pain may be related to perianal abscess, anal fissure, hemorrhoids, and so on. In addition, the patient himself should be considered to have urinary diseases. 1. Perianal abscess: this is caused by infection, and a swelling will form in the circle around the patient’s anus, with obvious redness and pain. Due to the stimulation of severe pain, it may lead to spasm of the patient’s urethral muscles, affecting normal urination. Patients with perianal abscess may also have difficulty sitting or standing still. 2. Anal fissure: When anal fissure attacks, due to the tearing of the muscle tissue in the area, it will cause severe pain, leading to the patient too nervous, affecting normal urination. 3. Hemorrhoids: When there are obvious hemorrhoids enlarged red and swollen, serious cases will have prolapse, blood in the stool and severe pain. If the pain continues to worsen, it may affect normal urination. 4. Urological diseases: If the patient himself has urethral stones, prostate hyperplasia, renal insufficiency, or urinary tract infections and other diseases, it is difficult to urinate and other symptoms. It is best for the patient to consult a doctor in time to clarify the cause of the disease and give treatment as soon as possible to avoid aggravation of the condition.