The most common clinical cause of back pain when lying down is inflammation of the fascia of the low back and lumbar muscle strain. The main reason is because the patient is sedentary for a long time, such as sitting and standing on the computer work or driving (the most common is driving a bus driver), or bending over heavy physical labor, such as lifting heavy objects or carrying heavy objects. These result in muscle strain and inflammation of the fascia in the lower back, which leads to pain. The pain is mainly soreness, swelling and sometimes stabbing pain. The pain is usually more pronounced after lying down, in the second half of the night, and can be reduced when turning around and changing position. For this condition, the best treatment is adequate bed rest, you can choose the prone position or side lying position. In addition, it can be combined with back massage, massage, infrared therapy, etc., and can also take oral non-steroidal anti-inflammatory and analgesic drugs.