Another possible cause is a vitamin B12 deficiency, which is common among vegans and vegetarians. Vitamin B12 is found in foods like eggs, meat, dairy, and fortified cereals, or you can take it as a supplement.
Low levels of calcium, potassium, or sodium can also disrupt nerve signals, causing tingling. This often happens because of dehydration, certain medications, or other health issues. To avoid this, stay hydrated, eat nutrient-rich foods, and see a doctor if symptoms continue.
Chronic high blood sugar, known as diabetic neuropathy, can cause numbness, tingling, or burning in the hands and feet.
Nerve compression from issues like a herniated disc, neck spondylosis, or autoimmune disorders like rheumatoid arthritis can also lead to numbness and tingling.
Though hand numbness is often caused by harmless factors, if symptoms last, it’s important to consult a doctor.
