The buttock balls, medically known as the hips. Hip pain is usually due to cold, strain, discomfort in the lumbar spine, or the impact of the pear-shaped muscle in the hip. There is a hole in the middle of the pear-shaped muscle through the sciatic nerve, which in turn emanates from the lumbar spine. If the area contracts or the muscle becomes inflamed and thus contracted, the sciatic nerve will be compressed and painful, and at this time the hip will also become painful. When sitting on a harder or colder bench, the pain will increase, mostly on one side, and after a long time, pain will appear on both sides. If such a situation occurs, you need to go to the hospital for appropriate examination to clarify whether the pain is a problem of the lumbar spine, or a problem of the hip muscle fascia, pear muscle stenosis or inflammation, and make the appropriate treatment. If the lumbar spine is heavily compressed, it can be treated by minimally invasive lumbar spine surgery. If it is a pear-shaped muscle syndrome, the hip pain can be treated by physical therapy or medication for pain relief.