Thigh muscle atrophy recovery time needs to be decided according to the cause of the disease, generally speaking, thigh muscle atrophy can be relieved after about six months of formal treatment, but some patients may need longer or can not be recovered. 1. Inactivity: muscle atrophy caused by long-term inactivity can be recovered in about half a year for most patients through increased nutrition and regular rehabilitation training. 2. Malnutrition: For patients with malnutrition resulting in thigh muscle atrophy, most of them can recover in about half a year through increased nutrition and regular rehabilitation training. 3. Trauma: for trauma caused by muscle damage or nerve damage caused by muscle atrophy, when the injury is mild through the microwave and other physical therapy, methylcobalamin, vitamin b12 and other nutritive nerve medication, later rehabilitation exercise, most of the patients, most of the patients in six months or so can be restored. When the damage is more serious, it may take longer or cannot be recovered. 4: nerve compression diseases: such as lumbar disc herniation, pyriformis syndrome and other diseases can lead to thigh muscle atrophy, by lifting the compression, supplemented by microwave and other physiotherapy, methylcobalamin, vitamin b12 and other nutritive nerve drugs, as well as rehabilitation exercises, most of the patients about half a year can recover. The recovery time of thigh muscle atrophy depends on the cause of the disease, and it is recommended that the patient go to the hospital in time to clarify the cause of the disease and then give targeted treatment. The above drugs should be used under the guidance of a doctor, avoid self-medication.