The pain on the left side of the stomach may be caused by cold abdomen, intestinal cramps, urinary stones, etc. It is recommended to relieve the pain through hot compresses, massage or medication under the guidance of the doctor. 1. Abdominal cold: when the abdominal warming measures are not done properly, resulting in abdominal cold, the patient may cause pain in the lower left side of the abdomen. The patient should keep the abdomen warm in daily life, and can also use hot compresses to relieve the symptoms. 2. Intestinal spasm: intestinal spasm caused by the left side of the stomach pain, you can take a hot water bag to relieve the phenomenon of pain in the stomach; you can also rub your hands hot, put the palm of your hand over the navel, clockwise massage, which can relieve smooth muscle spasm, relieve the phenomenon of pain in the stomach. 3. urinary stones: urinary stones caused by the left side of the stomach down pain, generally because of stone stimulation of the ureter will appear painful phenomenon, you can extend the ureter, and should be supplemented with fluids; you can also take pain medication for treatment, such as pethidine hydrochloride. When the patient has a pain on the left side of the stomach, it is recommended to go to the hospital as soon as possible for examination and treatment under the guidance of a professional doctor.