Sudden thigh pain like pins and needles may be due to physiological factors, such as a long time without exercise lactic acid buildup, there may also be pathological reasons, such as muscle strain, lumbar disc herniation, thigh neuritis, etc., you need to address the specific causes, the cause of the treatment. If it is physiological factors, such as a long period of non-exercise caused by the accumulation of muscle lactic acid, you need to establish a reasonable concept of exercise, the correct warm-up and stretching, the use of fascia gun release. If it is a pathological cause of muscle strain, you need to properly reduce the stretching range, to protect the muscles and ligaments, the more serious can be under the guidance of the doctor to take anti-inflammatory or pain medication. If it is a pathologic cause of lumbar disc herniation, then you need to take a timely examination, if necessary, bed rest, with the doctor’s treatment program. If it is a pathologic cause of thigh neuritis, it is necessary to identify the specific cause, under the guidance of the doctor to take vitamin B1 and compound danshen tablets and other relief. Exclude physiological factors, timely examination and treatment of pathological causes, to avoid delaying the disease.