Women who have a vague pain in the left side of the small stomach, mainly consider the following situations. First, left-sided adnexitis or left-sided cystic torsion and other gynecological related diseases, the patient can do gynecological examination and ultrasound to preliminary screening. If there is a mass in the left adnexal area, and the size and texture of the mass can be touched during the gynecological examination, it is necessary to do ultrasound to further confirm and determine whether there is a torsion or rupture and deal with it according to the situation. If the left side of the adnexa inflammation gynecological examination of the left side of the adnexa can have thickening pressure pain, there is no obvious mass does not need to do ultrasound, in accordance with the inflammation can be dealt with. Second, urinary system diseases such as inflammation, patients may have frequent urination and urinary urgency or lumbar pain and other discomforts, by doing the urinary system ultrasound and check the urine routine can be initially screened. Third, colitis or intestinal to other diseases, patients may be accompanied by diarrhea, abdominal distension, increased exhaust and other clinical manifestations.