The stinging sensation of urination is a common clinical symptom, and there are many causes of stinging sensation of urination, which is commonly caused by urinary tract infection, and when there are diseases such as urethral stones, it can also cause stinging sensation of urination. 1. urinary tract infection: when patients have urinary tract infection, urinary tract irritation symptoms of frequent, urgent and painful urination can occur, which are commonly caused by pyelonephritis, ureteritis, cystitis and urethritis. When the inflammatory symptoms improve, the painful urination can be improved. 2. Urethral stones: Not only can they cause stinging pain in urination, but they can also be accompanied by difficulty in urination, bifurcation of urination, or even bleeding from the urethra during urination. When suffering from prostatitis, prostate hyperplasia, vesiculitis, bladder tuberculosis, polyps and tumors in the urethra, a stinging sensation in urination can also occur, as well as hematuria, etc. Urethroscopy is needed to check whether there are abnormal lesions in the corresponding areas and to treat them according to the causes. Therefore, when there is a stinging sensation in urination, especially when it is accompanied by serious conditions such as difficulty in urination and hematuria, you should seek medical attention in a timely manner, improve the relevant examinations, and provide early treatment under the guidance of a doctor.