Leg numbness when going to the toilet are due to squatting for too long causing pressure on the blood vessels, thus causing relative ischemia and inducing symptoms, the patient will experience numbness and discomfort in the lower limbs. With the release of pressure can be relieved, the problem is not big. However, there are some clinical conditions that need to be examined, especially if the patient has numbness soon after a slight squatting time or has unilateral numbness and discomfort after walking for too long in normal times, we should consider whether the patient has underlying vascular stenosis. Especially if the patient has diabetes, hypertension, hyperhomocysteinemia and other high-risk factors for atherosclerosis, if the numbness occurs on one side of the squatting toilet within a short period of time, it is necessary to check whether there are problems with the blood vessels of the lower limbs. You can do an ultrasound of the arteries in the lower extremity, and in severe cases, you may need to do an angiography to see if there is relative stenosis. But symmetry and is caused by too much time, no problem to relieve and usually life does not affect, the problem is generally not big.