Carpal tunnel syndrome primarily affects the thumb, index finger, and middle finger, as confirmed by various studies. This condition is linked to a neuropathy that causes compression of the median nerve at the wrist. This compression leads to symptoms such as numbness and pain, which can also impair mobility. Reduced sensitivity and hand numbness are common manifestations of this disorder, and symptoms are often more noticeable at night.
Other Medical Conditions
Several other medical conditions can cause hand numbness. Tennis elbow, also known as lateral epicondylitis, is a disorder related to inflammation of the tendons around the elbow and is not only common among athletes but also among professionals such as mechanics and craftsmen.
Dehydration is another possible cause, as a lack of fluids in the body can lead to numbness symptoms. Poor blood circulation, often influenced by lifestyle habits such as smoking and alcohol consumption, can also cause tingling sensations. Finally, vitamin deficiencies—particularly vitamin B12 deficiency—can lead to muscle weakness and numbness, affecting the nervous system as well.