Inner thigh pain and knee pain may be caused by strenuous activities, arthritis, tumors, etc. They can be treated with physical therapy, medication or surgery under the guidance of a doctor. 1. Strenuous activities: In the case of strenuous exercise, it may lead to different degrees of strain on the ligaments and other parts of the leg, resulting in medial thigh pain and knee pain. Depending on the degree of the condition, physical therapy such as bed rest, reducing activities on the ground, elevating the lower limbs and applying cold compresses with cool towels, or surgery may be the treatment of choice. 2. Arthritis: If you suffer from arthritis, the condition may worsen if you stand for a long time, walk too much or get cold. The type of inflammation can be determined under the guidance of a doctor and treated by taking non-steroidal anti-inflammatory painkillers, uric acid excretory drugs and other types of medication, such as celecoxib and benzbromarone. 3. Tumor: When there is a tumor in the inner thigh, after the volume increases with the aggravation of the disease, it may cause pressure on the local blood vessels or nerves, and inner thigh pain and knee pain will occur. Depending on the extent of the disease, tumor removal surgery and radiotherapy are chosen for treatment. When the condition of inner thigh pain and knee pain occurs, timely examination should be carried out in the hospital to determine the cause of the disease and choose the suitable treatment under the guidance of the doctor.