Patients go to the toilet leg numbness is mostly considered to be lumbar disc herniation, as follows: First, when patients go to the toilet, especially in the stool, the intra-abdominal pressure will increase, the increase in intra-abdominal pressure will cause the degree of lumbar disc herniation aggravated, there will be symptoms of leg numbness, leg pain. Secondly, when patients go to the toilet, a longer time will cause the sciatic nerve to be compressed, especially in the case of squatting pits, the sciatic nerve compression will be more serious, often causing foot numbness to increase. Therefore, in patients with lumbar disc herniation, it is recommended to use a commode, while not force to defecate, and the presence of constipation must use corkage. It is usually necessary to soften the stool, otherwise it is very easy to cause acute prolapse of the lumbar disc during defecation.