Postpartum painful urination can usually heal on its own, but you need to have a routine urine review and ask your doctor to see you later to decide whether to treat it. The causes of postpartum painful urination may include: 1, the catheter may be left in place during labor, such as a catheter may be left in place when performing a cesarean section, so it will produce a local stinging sensation, the pain can gradually reduce or gradually disappear in about 24-48 hours, and this situation can be improved after drinking more water properly after delivery; 2, the puerperium during labor causes urethral contamination, which can cause local stinging pain or urinary frequency, urinary urgency and other symptoms. Usually, if you drink more water and keep the local hygiene, this condition can be cured by itself, but for a very small number of people, if there is a combination of pain with frequent urination and urinary urgency with fever, it usually cannot be cured by itself, and you need to use drugs to anti-infection treatment, and the temperature will drop after the infection is controlled and last for more than a week before you can stop the use of relevant anti-inflammatory drugs.