Dear Doctors: I’m having radial nerve problems whenever I use my triceps, like pushing the lawn mower, opening doors or pushing up from the recliner. It’s making my thumb and pointer finger very weak.

Medically reviewed by Oluseun Olufade, MD Key Takeaways Thumb numbness can be caused by a pinched nerve or diseases that harm the protective coating of nerves.Carpal tunnel syndrome is a common cause ...

Compression or ‘pinching’ of one of the main arm nerves can cause tingling, numbness, and nerve pain in the arm. Physical therapy, medications, and surgery can treat pinched nerves. A pinched nerve ...