The whole hamstring pain, there may be the following reasons: First, pear-shaped muscle syndrome, when the pear-shaped muscle syndrome serious compression of the nerves, can appear the whole leg back side of the hamstring pain symptoms, to early checkup, as well as electromyography, to carry out early diagnosis and early treatment. Second, cold or exertion, when cold or exertion, there can be a chronic injury to the posterior thigh fascia, muscle, as well as inflammation, there can be symptoms of pain in the posterior side of the leg, we need to carry out early physical examination, to exclude other diseases for diagnosis. Third, lumbar spine disease, when the lumbar spine has lumbar disc herniation or lumbar spinal stenosis, compression of the nerves, can also lead to the symptoms of the whole back of the leg, early lumbar spine X-ray film, CT, nuclear magnetic examination, for early diagnosis and early treatment.