Patients walking for a long time thigh root pain, in general, the common causes are mainly the following: First, the patient’s prolonged exercise can cause continuous muscle contraction at the root of the thigh, accompanied by the accumulation of lactic acid and metabolic waste, causing significant local swelling and pain. It is recommended that patients take proper rest, use hot towels for wet compresses, moxibustion strips for fumigation, and manipulation acupressure physiotherapy to promote faster absorption of local lactic acid and other metabolic wastes, which can relieve the pain symptoms at the root of the thigh. Second, patients with combined femoral head necrosis, if walking for a long time, will cause the original necrotic femoral head to be repeatedly stimulated by friction, thus aggravating the local neuropathic pain. At this time, patients need to take oral diclofenac sodium capsule, ibuprofen and other drugs to relieve the pain symptoms. Surgery is recommended for severe femoral head necrosis in order to completely relieve the pain at the root of the thigh.