Hidden pain in a woman’s left lower abdomen near the groin may be caused by pelvic inflammatory disease, urinary stones, inguinal hernia and other diseases. 1. Pelvic inflammatory disease: Pelvic inflammatory disease is an inflammatory disease that occurs in the upper reproductive tract and the surrounding tissues, in addition to the symptoms of pain in the lower abdomen, it may also be accompanied by fever, increased vaginal discharge and other symptoms. 2. Urinary stones: the urinary system includes the kidneys, ureters, bladder and urethra, and if there are stones in the urinary system, it may also lead to hidden pain in the left lower abdomen near the groin. 3. Inguinal hernia: Inguinal hernia is the protrusion of organs or tissues in the abdominal cavity, together with the peritoneal wall layer, to the surface of the body through the gap or weak point in the groin area. The patient will experience pain in the inguinal area and also a lump. There are many other causes of pain in the lower left abdomen near the groin, it is recommended to go to the hospital in time to find out the cause of the disease and follow the doctor’s instructions, so as to avoid delaying the condition.