Treating leg numbness requires diagnosing and treating its root cause, as MedlinePlus explains. This may involve treating an underlying condition, changing a medication or taking vitamins.
Leg numbness occurs due to restriction of the blood supply or permanent or temporary damage to the nerves, as Healthgrades explains. This may affect one or both legs, and it may be harmless and temporary. Temporary leg numbness typically occurs due to ordinary actions, such as prolonged sitting or bicycling, and it quickly passes without consequence. However, other forms of leg numbness may be rooted in a condition that requires medical attention.
Leg numbness may stem from a wide variety of conditions, ranging from relatively mild to highly serious, as Healthgrades warns. The causes of leg numbness related to low blood flow include exposure to severe cold, peripheral artery disease, deep vein thrombosis, Buerger’s disease and arteriovenous malformation. Conditions that damage nerves enough to cause leg numbness include osteoporosis, a herniated disk, degenerative disk disease and back injury. Other sources of nerve damage include hypothyroidism, multiple sclerosis, transverse myelitis, vitamin B12 deficiency and injury to the spinal cord. If leg numbness is accompanied by leg weakness, incontinence, slurred speech and a state of confusion, Healthgrades advises seeking medical help immediately.