Osteoarthritis is the most common type of arthritis and can affect many parts of the body, including the hips and thighs, says WebMD. It happens when irritation or damage to a joint causes a breakage to cartilage tissue. This causes a person to experience pain and swelling.
Pain can occur in different areas of the body, such as the groin, knee and thigh, notes WebMD. The severity varies from a dull ache to a sharp stabbing pain. This may complicate how quickly a health care provider diagnoses the patient. There are several methods of treatment, such as rest, walking with a cane, weight loss, medication and surgery.