There may be several reasons for the simultaneous appearance of stomach and back pain: first, kidney disease, when the kidney stone travels downward, through the ureter and stuck in the ureteral stenosis, there can be back pain, accompanied by pain in the small stomach, reflex pain, can be accompanied by urinary symptoms, such as hematuria, this time to carry out urography or ultrasound examination for diagnosis, and if necessary, also Second, gynecological diseases, when there is pelvic inflammatory disease, pelvic effusion or tumor, there can also be small stomach pain and lumbar pain, which can be accompanied by a feeling of swelling in the small abdomen, then ultrasound, CT or MRI of the abdominal cavity should be performed for early diagnosis and treatment.