Back pain after jumping rope may be caused by some physiological reasons, such as lactic acid buildup, etc. It may also be a symptom of certain diseases, such as lumbar intervertebral disc herniation, muscle soft tissue strains and so on. 1. Physiological reasons: If the jumping posture is improper or overworked, the accumulation of lactic acid in the lumbar muscles will lead to back pain after jumping rope pain. 2. Lumbar intervertebral disc herniation: after the rupture of the lumbar intervertebral disc fibrous ring, the nucleus pulposus protrudes and compresses the nerve root, causing lumbar pain. The increased force on the lumbar spine during jumping exercises will exacerbate the symptoms of lumbar disc herniation and manifest lumbar pain after jumping rope. 3. Muscle soft tissue strain: if jumping exercise is excessive, it may cause lumbar muscle and fascia injury, and produce the symptoms of lumbar pain. In addition to this, urinary system diseases, pelvic organ diseases, etc. may also lead to back pain after jumping rope. If the condition of back pain after jumping rope can not be relieved, it is recommended to consult a doctor in a timely manner, after the doctor to identify the cause of the disease for targeted treatment.