The most common reasons for playing basketball back pain are over-exercise, muscle strain, lumbar disc herniation and so on. 1. Excessive exercise: If you play strenuous basketball, it is easy to cause the accumulation of lactic acid, lactic acid in the process of metabolism may cause lumbar pain, usually can be relieved after rest. 2. Muscle strain: If the patient caused muscle strain during strenuous exercise, it may also cause lumbar pain, acute injuries should be promptly iced, but also pay attention to the protection of the lumbar region and adequate rest. 3. Lumbar disc herniation: if the patient himself has lumbar disc herniation, strenuous exercise may cause lumbar muscle strain, aggravate the symptoms of lumbar disc herniation, produce lumbar pain. The causes of basketball back pain are more reasons, but also may be related to fractures, ankylosing spondylitis and other reasons, if there is no relief after resting, it is recommended to go to the hospital in time to find out the cause of the disease, by the doctor targeted treatment.