Pain below the navel can be caused by many reasons, the most common reasons are the following: a. Urinary tract infections, such as patients with cystitis can lead to pain below the navel, often urinary frequency, urinary urgency, urinary pain, it is recommended that patients improve urinary routine examination to assist in the diagnosis. If a female patient has pain below the navel, pelvic inflammatory disease should be considered, such as tubal inflammation, ovarian inflammation, uterine inflammation, lower abdominal peritonitis, etc. can cause pain below the navel, and the patient is advised to visit a gynecologist and improve ultrasound and other tests to assist in the diagnosis. If the patient has enteritis or intestinal tumor, the patient may also have pain below the navel, often accompanied by diarrhea and blood in the stool, so it is recommended to improve the routine stool examination and colonoscopy to assist in the diagnosis. Fourth, if the patient has urinary stones, it may also cause pain below the navel. Therefore, there are many diseases that cause pain below the navel, so it is recommended that patients must seek timely medical consultation and improve relevant examinations, and carry out corresponding treatment after clear diagnosis.