What causes numbness and weakness in the limbs?

Weakness and numbness in the limbs can be caused by various factors, mainly including:

1. Improper posture: Maintaining the same posture for prolonged periods, such as sitting or standing for long durations or frequently looking down at a mobile phone, may lead to poor blood circulation in the limbs and cause numbness and weakness.

2. Excessive fatigue: Overexertion from physical labor or intense exercise may result in muscle fatigue and nerve damage in the limbs, leading to numbness and weakness.

3. Medical conditions:

Peripheral neuropathy: Damage or infection of peripheral nerves can cause functional impairments, leading to numbness and weakness in the limbs.

Cervical spondylosis: Lesions in the cervical spine may compress nerve roots, obstruct nerve conduction in the limbs, and cause numbness and weakness.

Diabetes: A prolonged state of high blood sugar may lead to peripheral neuropathy, causing numbness and weakness in the limbs.

Cardiovascular diseases: Conditions such as hypotension and arrhythmia may also cause numbness and weakness in the limbs.

4. Effects of medications or toxins: Certain medications or toxic substances may cause toxic or drug-induced peripheral neuropathy, manifesting as numbness and weakness in the limbs.

Patients are advised to seek timely medical attention when experiencing symptoms of numbness and weakness in the limbs.