Numbness of lower limbs

Introduction Lower extremity numbness is caused by the compression of the lumbar intervertebral disc disease, or the physiological and degenerative changes of the lumbar spine, which leads to diseases such as "lumbar disc herniation" or "lumbar spinal stenosis", so there is pain and numbness of the lower extremities. Symptoms.

Cause

Numbness is caused by prominent nucleus pulposus compression of the proprioception and tactile fibers. A small number of patients consciously have cold, no sweat or lower extremity edema in the lower extremities, which is related to the stimulation of the sympathetic nerve roots in the lower back. A large central prominent person can appear numbness, tingling, and pain in the lower extremity sciatic nerve. Muscle atrophy is a serious lumbar disc herniation, often accompanied by muscle atrophy of the lower limbs, and the dorsiflexion of the hallux dorsiflexion is more common.

an examination

Related inspection

Neurological examination CT examination

80% of patients with lumbar spondylosis have lower extremity radiation pain, often appear after the relief or loss of low back pain. Radiation pain in the lower extremities is manifested by radioactive stimulation or numbness from the waist to the thigh and the back of the calf, reaching the bottom of the foot. The severe one can be a severe pain from the waist to the foot, and often accompanied by numbness. Those with mild pain can walk and are in a state of limp; those who are severe need to rest in bed, prefer to bend, bend their hips, and bend their knees. The numbness of the lower extremities is accompanied by pain. A small number of patients can be numb with one leg, and a few patients feel chilly and cold in the lower extremities.

Differential diagnosis

Can be distinguished from numbness of the limbs.

Muscles of the extremities are symptoms that often occur in people's daily lives. For example, pregnancy, incorrect sleeping posture, and long-term use of toilets can be triggered. Generally, they will be eliminated in a short period of time, and there will be no major problems. The numbness of the hands and feet of healthy people occurs mostly after being in a posture or pressure on the limbs for a long time. This type of numbness rarely exceeds ten minutes and can quickly disappear without any other symptoms.

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