Mild quadriceps atrophy should be treated with general therapy, medication, physical therapy, functional exercise and surgery according to the cause, which may be caused by trauma, lumbar nerve compression and femoral head necrosis. 1. Trauma: Due to the fracture of the lower limb caused by trauma, the lower limb needs to be braked and rested for a long time during the treatment period, which leads to the mild atrophy of quadriceps muscle. Under the guidance of the doctor, you can carry out rehabilitation exercises or go down to the ground activities will gradually recover. 2. Lumbar spinal nerve compression: It may be the compression of lumbar spinal nerve or prolonged lower limb braking, which leads to mild quadriceps atrophy. Under the guidance of the doctor, oral nutritional nerve medication, such as methylcobalamin, vitamin B1, etc., can also be localized hot compresses, massage and other physiotherapy, if conservative treatment is ineffective, consider surgical treatment, such as lumbar posterior decompression surgery. 3. Necrosis of the femoral head: As the local joints will be painful after necrosis of the femoral head, it will lead to less activity of the lower limbs, which can cause mild atrophy of the quadriceps muscle. Necrosis of the femoral head collapse, affecting the normal function of the hip joint, feasible hip arthroplasty, after surgery and appropriate rehabilitation exercises. There are other causes of mild quadriceps atrophy phenomenon, should go to the hospital in a timely manner, improve the relevant examination, clear cause of the disease to comply with the doctor’s instructions for targeted treatment, so as not to delay the condition, the drug needs to be taken under the guidance of a doctor.