Sore inner thighs need to be relieved according to its causes. Common causes include lactic acid buildup, lumbar disc herniation, ligament injuries, hip joint diseases, etc. General treatment, physical therapy, medication and surgical treatment can be adopted. 1. Lactic acid accumulation: Strenuous exercise and high-intensity sports may cause lactic acid to accumulate in the inner thighs, which cannot be excreted in a timely manner, thus resulting in soreness in the inner thighs. Treatment should be based on adequate rest and massage to promote lactic acid excretion without special treatment. 2. Lumbar disc herniation: Lumbar disc herniation leads to nerve root compression and irritation, thus causing inner thigh pain. Treatment can be hot compresses, physiotherapy, traction therapy for the lumbar spine, you can also take ibuprofen, and other anti-inflammatory analgesic drugs, the seriousness of the condition requires surgical treatment. 3. Ligament injuries: medial thigh ligament injuries can also cause medial thigh pain, bed rest, physiotherapy and hot compresses, if necessary, follow the doctor’s instructions oral analgesic drugs, such as celecoxib. 4. Hip joint lesions: hip synovitis, osteoarthritis of the hip joint, femoral head necrosis, etc., can also cause inner thigh pain. Patients can follow the doctor’s instructions to take drugs that nourish cartilage, such as aminoglucose hydrochloride, with analgesic drugs, such as Loxoprofen sodium. In severe cases, surgery for artificial joint replacement is required. There are other causes of inner thigh pain, such as femoral bone tumors and tuberculosis, etc. If the pain cannot be relieved for a long time, it is recommended to consult a doctor for timely examination and treatment.