The causes of painful urination include dietary factors, urinary tract infections, urinary tract obstruction, etc. It is recommended that patients seek medical attention in a timely manner. 1. Dietary factors: such as drinking too little water, as well as the intake of too much salt, stimulating food, etc., can trigger a transient manifestation of painful urination, generally replenish the water after the symptoms can be relieved. 2. Urinary tract infection: such as cystitis, urethritis, urinary tract tuberculosis, acute pyelonephritis, etc., can have urinary pain, the patient can also be accompanied by frequent urination, urinary urgency, urination difficulties, fever, fatigue and other symptoms. 3. Urinary tract obstruction: such as urinary stones, tumors, congenital malformations, etc., can cause urinary tract obstruction, increased pressure during urination, easy to cause urinary pain, and obstruction is easy to complicate infection, aggravate the symptoms of urinary pain. Painful urination may also be caused by other factors, patients with symptoms of painful urination, not relieved by rest or accompanied by other symptoms of discomfort, should go to the regular hospital in a timely manner to seek medical treatment, and strive for early recovery.