Hip pain from walking too much may be related to the following causes: 1. caused by excessive fatigue. If lactic acid is deposited in the gluteus maximus and other hip muscles, it may cause hip pain. 2, the presence of hip-related pathologies, such as hip osteonecrosis, or hip osteoarthritis, such patients may also cause pain around the hip if they walk too much. 3, the presence of sacroiliac joint pathologies. If the patient has dense osteoarthritis or compulsory spondylitis, which leads to inflammation of the sacroiliac joint, pain around the hip may occur after too much walking. 4. caused by peripheral nerve lesions. If the patient suffers from lumbar disc herniation or sciatica, walking too much may also induce aggravation of the disease and cause pain around the hip.