Cold baths are not recommended for lumbar disc herniation, as they may cause muscle spasms and aggravate the symptoms of lumbar and leg pain and lower limb weakness. Lumbar disc herniation is a spinal surgical disease caused by partial or total rupture of the fibrous nucleus of the intervertebral disc, leading to prolapse of the nucleus pulposus, which irritates or compresses the nerve root, resulting in nerve compression, edema and other spinal surgical diseases. Lumbar disc herniation can cause compression of the cauda equina nerve, causing symptoms such as abnormal sensation in the saddle area and incontinence. It can also cause scoliosis and muscle atrophy. Taking a cold shower for patients with lumbar disc herniation may cause lumbar muscle contraction or spasm, causing intervertebral foraminal stenosis, further aggravating the irritation and compression of the nerve root, aggravating the symptoms of lumbar and leg pain, numbness, weakness of the lower limbs, sciatica, and intermittent claudication. Lumbar intervertebral disc protrusion patients are recommended to seek timely medical attention to clarify the diagnosis, under the guidance of the doctor for targeted treatment.