The common causes of back pain and soreness are lumbar back muscle strain, lumbar back muscle fasciitis or supraspinous ligamentitis. There are muscles, ligaments and fascia in the lumbar and back. When the body works bent over for a long time or sits or stands for too long, as well as when the posture is not right, the muscles will be tense and uncoordinated, and over time a strain will occur. After the strain, an inflammatory reaction will occur, resulting in local inflammatory exudation and adhesions, forming a sterile inflammation, resulting in local pain and discomfort such as soreness and swelling. The above signs suggest the need for lumbar protection, such as avoiding bending the waist as much as possible, and proper stretching of the muscles every day. At the same time, heat packs or oral anti-inflammatory and analgesic drugs are used to relieve the contracture of the lumbar and back muscles as well as myofascia and ligaments.