What causes numbness in the right hand and right foot?

Under normal circumstances, numbness in the right hand and right foot may be caused by various factors such as improper posture, lack of physical activity, cervical spondylosis, peripheral neuritis, or cerebral infarction. It is recommended to seek medical attention promptly, identify the underlying cause, and receive symptomatic treatment under the guidance of a qualified physician. Specific analysis is as follows:

1. Improper Posture

Maintaining the same position for prolonged periods—such as sitting or standing for long durations, or compressing nerves during sleep—can obstruct local blood circulation and lead to numbness in the hands and feet. Changing positions regularly and engaging in appropriate limb movement can help improve blood flow.

2. Lack of Exercise

Insufficient physical activity, especially exercises targeting the limbs, may result in muscle stiffness and poor circulation, thereby causing numbness in the extremities. It is advisable to increase physical activity through low-intensity exercises such as walking, swimming, or cycling.

3. Cervical Spondylosis

Cervical spondylosis results from degeneration or herniation of cervical intervertebral discs, which may compress nerve roots or the spinal cord, disrupting nerve conduction and leading to numbness in the hands and feet, including the right hand and right foot. This condition may also be accompanied by neck pain and stiffness. Patients may take medications such as enteric-coated aspirin tablets, indomethacin tablets, or betahistine mesylate tablets under a doctor’s supervision.

4. Peripheral Neuritis

Peripheral neuritis may be triggered by infections, toxins, or other factors that damage peripheral nerves, resulting in numbness in the right hand and right foot. Symptoms may include pain and abnormal sensations in the extremities. Patients are advised to take medications such as mecobalamin tablets, hydrocortisone tablets, or dexamethasone tablets under professional medical guidance to alleviate symptoms.

5. Cerebral Infarction

Cerebral infarction occurs due to impaired blood supply to the brain, causing ischemia, hypoxia, and subsequent necrosis of brain tissue, which can lead to numbness in the limbs. It is often accompanied by symptoms such as dizziness and headache. Patients may take medications such as warfarin sodium tablets, atorvastatin calcium tablets, or butylphthalide soft capsules as directed by their physicians to relieve symptoms.

In daily life, it is important to develop healthy habits, avoid excessive fatigue, and engage in appropriate physical exercise.