Hidden pain in the left lower abdomen near the groin may be caused by inguinal hernia, inguinal lymphadenitis, femoral head necrosis and so on. 1. Inguinal hernia: the intestinal tube and omentum embedded in the left lower inguinal opening, may cause pain in the left lower groin position, usually need intestinal tube reset maneuver to reset, if necessary, using surgical treatment. 2. Inguinal lymphadenitis: Inflammation and enlargement of lymph nodes caused by infections or malignant tumors in the tissues or organs near the groin in the lower left abdomen, resulting in pain in the lower left groin. Generally, the lesion can be identified through blood test, ultrasound and other tests, and lymph node biopsy can be performed if necessary. 3. Femoral head necrosis: left femoral head necrosis, in the femur, hip joint internal pressure, can cause left lower groin position pain, serious cases can be treated by surgery. In addition, left groin strain, left gynecological adnexitis and other conditions, can also lead to the left lower abdomen near the groin hidden pain. When there is pain in the left lower abdomen near the groin, it is recommended that the patient consult a doctor in a timely manner to clarify the cause of the disease and then carry out appropriate treatment under the guidance of the doctor.