Buttock pain after getting cold may be caused by local blood circulation disorder and lumbar intervertebral disc herniation. 1. Local blood circulation disorders: cold buttocks can cause the contraction of small blood vessels in the local tissues, making the part of the blood circulation is not good, muscles and other soft tissues are in an ischemic, hypoxic environment, metabolite accumulation caused by buttock pain. 2. Lumbar intervertebral disc herniation: lumbar intervertebral disc degeneration, the nucleus pulposus protrudes outside the annulus fibrosus, compressing the sciatic nerve, which can cause lumbar pain, and after getting cold, it can induce an acute attack of lumbar intervertebral disc herniation, which leads to the symptoms of buttock pain, and can be accompanied by radiating pain in the lower limbs, lumbar pain and other symptoms, and in severe cases, it can be urinary and faecal dysfunction, and so on. There are many reasons that lead to buttock pain after getting cold, and it is necessary to carry out a detailed examination to clarify the diagnosis, determine the cause of the disease and then carry out the corresponding treatment, so as not to cause adverse effects.