If the back hurts when lifting heavy things, the following causes are common: First, lumbar muscle strain: For most patients, lifting heavy things can lead to lumbar muscle strain, and the patient will have swelling and pain in the lumbar area as well as limited lumbar spine activities, and pressing the muscles on both sides of the lumbar spine will cause obvious pressure symptoms, which can be quickly relieved by resting in bed. Second, lumbar disc herniation: If the patient is an elderly patient, there may be diseases such as lumbar disc herniation, lifting heavy things will aggravate the lumbar disc herniation, so that the nerves are compressed, which leads to neuroedema, and the patient shows pain in the lower back, and serious cases can also lead to clinical symptoms of radioactive pain in the lower limbs. Through CT scan and MRI, lesions of the lumbar spine can be detected, and through early diagnosis and early treatment, clinical symptoms can be significantly relieved; if treatment is delayed, the pain will continue to flare up.