Wandering pain in the left upper abdomen and left lumbar region may be gastritis, chronic pancreatitis or kidney stones, which need to be analyzed specifically. 1. gastritis: inflammation of the gastric mucosa caused by various reasons is called gastritis, in addition to abdominal pain, it can also be accompanied by nausea, acid reflux, belching and other symptoms, gastroscopy and other tests can assist in making a clear diagnosis. 2. chronic pancreatitis: chronic pancreatitis is a chronic inflammatory lesion of the pancreas caused by a variety of reasons, in addition to abdominal pain, can also be accompanied by abdominal distension, weight loss, diarrhea and other symptoms, abdominal ultrasound / CT and other tests can be used to assist in the definitive diagnosis. 3. Kidney stone: kidney stone is a common disease of the urinary system, in addition to abdominal pain, can also be accompanied by hematuria and other symptoms, urinary ultrasound, urograms and other tests can assist in the definitive diagnosis. Wandering pain in the left upper abdomen and left lumbar region is recommended to consult a doctor in time to clarify the diagnosis and avoid delaying the condition.