Hidden stabbing pain in the lower left abdomen can be seen in normal people, can also be seen in ulcerative colitis, pelvic inflammatory disease, etc., the patient should consult a doctor in a timely manner to clarify the cause of the disease after treatment. 1. Physiological situation: in the exercise of laughter, sharp bends and turns after the abdomen, back and other places of a muscle sudden spasm caused by transient pain, the patient in the exercise should be correct before stretching, can be through the local massage, massage to ease the pain. 2. Ulcerative colitis: a chronic non-specific intestinal inflammation, the patient will have a vague tingling pain in the lower left abdomen, mucous pus and blood stools, acute and severe symptoms, can be under the guidance of the doctor through the use of mesalazine, budesonide and other drugs for treatment. 3. Pelvic inflammatory disease: a kind of gynecological disease that occurs to women who have sex, patients can manifest as tingling in the left lower abdomen, distending pain, abdominal swelling, and the more typical characteristics are accompanied by vaginal discharge with a bad smell. Patients should pay attention to rest, under the guidance of the doctor can use clindamycin, amoxicillin, metronidazole and other drugs to carry out treatment. The appearance of the left lower part of the abdomen vague tingling, to rule out physiological factors, if the symptoms are recurrent or persistent, it is recommended to consult a doctor in a timely manner, a clear diagnosis and treatment.