Medical history and physical exam.
Blood tests, toxicology, vitamin levels, thyroid function.
Imaging (CT, MRI, ultrasound, X-rays).
Nerve function tests (EMG).
Treatment Options
Home Remedies: Pain relievers, splints, heat/cold therapy, rest, hand exercises.
Medical Treatment: Adjusting medications, treating infections, vitamin supplements, surgery (for tumors, carpal tunnel, spinal issues).
When to See a Doctor

Seek immediate medical attention if numbness is persistent or occurs with:

Paralysis, dizziness, confusion, slurred speech.
Numbness in other body parts, loss of bladder/bowel control.
Rash or unexplained symptoms.
Bottom Line: Occasional numbness may not be serious, but frequent or persistent numbness requires medical evaluation.