Left lateral thigh pain is commonly caused by the following reasons: First, muscle strain: prolonged standing or excessive exercise can lead to symptoms of left lateral thigh muscle pain, mainly broad fascia tensor and lateral femoral muscle, the patient will also have localized symptoms of soreness and weakness, and even can not stand and walk, can not take part in sports, localized pressure pain symptoms will be aggravated by hot compresses, rest, the clinical symptoms will get After hot compress and rest, the clinical symptoms will be relieved. Second, the recovery period after the trauma: the left lateral thigh muscle acute strains, after rest, braking, in the recovery phase will also appear soreness symptoms, while local pressure, the symptoms will be more obvious. Patients usually have a clear history of trauma, especially a history of strenuous exercise, and clinical symptoms can be relieved quickly with localized braking and continuous heat treatment. Early diagnosis and treatment of left lateral thigh pain can quickly relieve the clinical symptoms, and the patient can return to normal life, work and sports.