The back meridians include the Hand Sun Small Intestine Meridian, Foot Sun Bladder Meridian, and the Directing Vessel. 1. Hand Sun Small Intestine Meridian: It is often found on the ulnar side of the little finger of the hand, behind the shoulder and in the neck. If there is any abnormality in this meridian, symptoms such as sore throat, pain in the upper arm and swelling under the jaw may occur. When performing massage on this meridian, the symptoms of yellow eyes, neck pain and upper arm pain can be relieved. 2. Foot Solar Bladder Meridian: It starts from the eye point at the inner corner of the eye, passes upward through the neck, the top of the head, etc., and goes downward along the shoulder blades through the lumbosacral region, the back of the legs, and reaches the point at the lateral side of the little toe of the foot, the yin point. Abnormalities in this meridian will show symptoms such as pain in the top of the head, yellowing of the eyes, epilepsy, back pain, and pain in the feet. 3. Directing Meridian: Distributed in the midline of the head, neck, waist and other parts of the body. Abnormal lesions in this meridian may cause dizziness, headache, forgetfulness, deafness, etc. Regular massage can improve symptoms such as fever, lung disease, lumbosacral pain, etc. When the back meridian lesions caused by physical discomfort, it is recommended to go to the hospital in a timely manner, as early as possible for targeted treatment.