Navel left 3-5 cm hidden pain, common diseases may be intestinal diseases, left ureteral stones, pancreatic diseases, gastric diseases caused by the need to consult a doctor in a timely manner to identify the cause. 1. Intestinal diseases: common for colitis, intestinal ulcers or polyps can cause pain in the left 3-5cm of the navel, accompanied by diarrhea and blood in the stool. It is necessary to address the cause of the disease, anti-infective treatment or surgical treatment, so as to alleviate the pain. 2. Left ureteral stone: patients will have left lower back pain, patients may be accompanied by hematuria, discomfort and other symptoms, some patients may have hidden pain on the left side of the navel. After clear diagnosis, extracorporeal lithotripsy can be carried out. 3. Pancreatic diseases: such as chronic pancreatitis, pancreatic tumors can appear in the place of hidden pain, may also be accompanied by nausea, vomiting, fever and other symptoms. It is necessary to follow the doctor’s instructions for the treatment of the cause of the disease, medication or surgical treatment. 4. Gastric diseases: patients with gastritis may have pain in the middle and upper abdomen, and some of them may have hidden pain 3-5 centimeters to the left of the navel, as well as abdominal distension, loss of appetite and other symptoms. Need to follow the medical advice for the cause and drug treatment. In addition, the left side of the navel 3-5 cm hidden pain should also be considered as a female patient’s left adnexal cyst or abscess caused by the pain symptoms; in addition, it may also be caused by tumor proliferation. When the left side of the navel 3-5 cm hidden pain, you need to consult a doctor in time, and actively carry out treatment.