What causes some numbness in the left leg?
Disease description:
I have recently been experiencing frequent numbness in my left leg, especially after sitting for prolonged periods, where the numbness becomes more noticeable. At times, I also feel some weakness in my left leg. What could be causing this? Could it affect my normal daily activities?
Doctor's answer (1)
Dr. Lv Zhiqin
Leg numbness on the left side can be caused by various factors. Below are some common possible causes:
1. Physiological factors: Maintaining the same posture for a prolonged period may compress nerves and cause localized numbness.
2. Lumbar disc herniation: This is a common lumbar spine condition. When the annulus fibrosus of a lumbar intervertebral disc ruptures, it may compress the nerve roots on the left side, causing numbness in the lower limb.
3. Diabetes: If you have diabetes and poor blood sugar control, it may damage peripheral nerves and cause numbness in the left leg.
4. Hypertension: Elevated blood pressure levels can impair blood circulation, leading to leg numbness.
5. Parkinson's disease: This is a neurological disorder that affects neurons in the brain, causing unstable muscle control, which may subsequently lead to left leg numbness.
6. Poor circulation: Conditions such as arteriosclerosis and thrombosis can impair blood circulation, reduce blood supply, and thereby cause numbness.
If left leg numbness persists, it is recommended to seek medical attention immediately. Additionally, improving lifestyle habits, avoiding prolonged sitting, and engaging in moderate exercise to promote blood circulation can help prevent and alleviate leg numbness.
