How long it takes for a man to heal himself from a stinging pain in the urinary tract when he urinates depends on the patient’s physical condition and measures taken, and cannot be generalized. Men with stinging pains when urinating are most likely to consider the presence of a UTI. If the symptoms are mild and the patient is in good health, the patient can drink more water and observe if the symptoms improve, usually within 72 hours. However, if the patient is a minor or an elderly patient, the possibility of self-healing is less due to the relatively weak resistance of the organism, and oral anti-infective medication is recommended. If the patient’s symptoms persist for more than 72 hours and do not disappear completely, or if they worsen progressively, he or she needs to go to a hospital urology department for relevant examination and then targeted treatment. Do not blindly wait for self-cure to avoid further aggravation of the lower urinary tract infection, which may spread to the kidneys and ureters. During the period of illness, patients should mainly rest, avoid excessive activities and strain, avoid staying up late, and eat a light, easy-to-digest diet, avoiding too acidic, too spicy or too hot food, and refrain from drinking alcohol.