Pressing left abdominal distension can be physiological reasons or pathological reasons, in physiological, the patient may have due to cold, or some female patients in the ovulation period, in pathological may be intestinal diseases, reproductive system diseases, and so on. 1. Physiology: the left side of the abdomen will be pressed and painful after getting a cold, and some women may have this kind of situation due to the ovulation period, and the symptoms can be relieved by themselves after passing the ovulation period. 2. Pathology: intestinal diseases: some patients with colitis or tumors in the colon will have such clinical manifestations. Reproductive system diseases: female patients with left-sided adnexitis, acute tubal torsion will also appear left abdominal distension. Based on the left abdominal distension symptoms can not accurately determine the cause, but also need to be combined with the characteristics of the medical history, other test results to make an accurate judgment, if there is discomfort, it is recommended to consult the doctor under the guidance of the treatment.