Back pain when exerting oneself is usually related to dorsal myofasciitis, osteoporosis, bone fracture and other factors. 1. Dorsal myofasciitis: related to chronic strain, such as long-term sedentary, long standing, easy to injure the myofascia, resulting in back pain when exertion. 2. Osteoporosis: usually related to long-term calcium deficiency, usually occurring in the elderly, when a large amount of calcium loss in the body, will destroy the bone and bone structure, thus causing back pain. 3. Fracture: If the backbone is broken, it may cause bleeding hematoma, which will easily lead to misalignment of the bones, and there will be obvious pain when moving, and accompanied by edema. When the symptoms of back pain occur, it is necessary to consult a doctor in time, and analyze the cause of the disease through X-ray, magnetic resonance examination, and then targeted treatment, so as to avoid delaying the disease and affecting normal activities.