The causes to be considered for pain 3-5cm to the left of the navel are gastrointestinal dysfunction, left ureteral stones, and left colon disease. If the abdomen catches cold, or the patient eats spicy and irritating food, as well as eating cold food, it may lead to gastrointestinal dysfunction, and pain will occur on the left side of the navel, which is usually a hidden pain, often accompanied by abdominal distension. If the left side of the ureteral stone, the patient will have abdominal cramps, often accompanied by hematuria, and even accompanied by left lumbar pain, discomfort. If the left side of the colon occurs a disease, such as colitis, colon cancer, etc., there will be abdominal pain, often accompanied by diarrhea and blood in the stool. It is recommended that patients go to the hospital in time, need to improve the examination, such as blood routine, urine routine, stool routine, colonoscopy, etc., to be able to clarify the diagnosis, and then you can carry out the appropriate treatment.