Patients back swelling, commonly due to back muscle strain, back muscle injury, and other causes, as follows: First, back muscle strain: excessive exercise or excessive weight bearing can cause back muscle strain, mainly the latissimus dorsi, rhomboid and rhomboid muscles, muscle strain after muscle congestion, will have a feeling of swelling and accompanied by soreness symptoms, through massage, hot compress treatment will soon be relieved . Second, back muscle injury: back muscle strain occurs during exercise, blood vessels in the muscle will lead to soft tissue swelling, the patient will also appear swelling symptoms, through cold compress treatment, rest, braking, the symptoms will be quickly relieved. Third, other causes: the mattress is too hard during sleep and continues to compress the back muscle fascia, and the clinical symptoms of back swelling will also appear in the morning. Therefore, patients with swelling in the back should be diagnosed early and treated according to different causes, which can lead to a complete relief of symptoms soon.