Zhang Chengyu sedentary or standing for a long time is likely to cause hip pain. He may not only feel pain when running, climbing stairs and walking, but also have difficulty walking. Patients with more severe symptoms will feel pain even when lying in bed, and it is difficult to sleep. Japanese plastic surgeons suggest that adding an extra pillow may really solve the problem of insomnia caused by hip pain! It is expected to prevent the hip joint from continuing to wear through nursing. Japanese hip joint expert and famous doctor Ishibe said that the hip joint supports the weight of the upper body and needs to maintain the activity of the lower limbs, which is a heavy burden. Hip joint must support 3 ~ 4.5 times the weight when walking, and increase to 6.2 ~ 8.7 times when climbing stairs. If overused, coupled with the growth of age, the cartilage of hip joint will be excessively worn, which will easily lead to degenerative arthritis and pain. In addition to seeking professional doctors to treat and improve hip pain, it is also very important to reduce injuries through daily maintenance. Katsumino HIROshi, president of Hiro Plastic Surgery Clinic in Japan, said that some cases of hip pain can even make people unable to sleep at night. The reason turned out to be that the sleeping mat and mattress are too soft! This is because when sleeping on a mattress that is too soft, the buttocks will sink under the weight, which will make the pelvis tilt and the hip joint bend, which will easily cause the burden of the hip joint and cause pain. Switching to a mattress with sufficient support may solve this problem, but the cost is too high. Therefore, Kenohong suggested that a pillow or towel can be placed under the knee socket when sleeping, so that the body weight can be distributed to the legs, the thighs can be raised, and the inclined pelvis can be restored to a normal angle, thereby improving the hip joint bending, reducing the burden on the hip joint, relieving the pain, and making yourself sleep peacefully. In addition, Keno Hiroshi also pointed out that the normal bending angle of hip joint should be kept at 70 ~ 90 degrees. It is suggested that the sitting surface should be kept above 50cm from the ground, so that the bending angle of hip joint should not be higher than 90 degrees, so as to reduce the burden of hip joint and prevent the symptoms of hip joint from getting worse. The practice is to fold a pillow or towel in half and roll it into a tube, which can support your legs. You can sleep under your knees. Katsumino stressed that many patients he treated used this method to improve the problem of hip pain at night and slept until dawn. However, he also stressed that hip joint problems, in addition to the usual maintenance, must also be diagnosed and treated by professional doctors in order to maintain joint health and not accelerate the deterioration.