The nerve for the thumb, called the median nerve, provides sensation and controls movement in the thumb. It carries signals from the brain to the muscles in the thumb, allowing us to feel and move it. Damage to this nerve can result in numbness, weakness, or loss of function in the thumb.
Go to nearest emergency room for cardiac evaluation immediately....
I'm not sure if you are saying that there is NEW thumb numbness or if you are saying that the thumb numbness you had from your carpal tunnel syndrome condition is still there? If the latter yes it can be normal and it may take several weeks to months but it should gradually improve once that compression on the median nerve has been released. If it's new, then possibly the median nerve still has some swelling and inflammation about the nerve from the surgery itself, and it should improve as your condition improves. The other possibility is that the median nerve was knicked, which is a risk factor for carpal tunnel surgery
Generally finger numbness is a result of conditions that affect nerves and/or blood vessels that supply the fingers. It is also associated with tingling. It need to be sorted out if the problem associated with only left thumb. Frequent symptoms are referred as finger paresthesia.
Probably some swelling or inflammation putting pressure on a nerve.
Compression of the median nerve causes tingling and numbness in the thumb, forefinger, middle finger and on the thumb-side of the fourth finger. It may also cause pain in the forearm and occasionally into the shoulder.
cut it off
Tingling and numbness on left hand thumb and index finger may be caused by nerve damage or carpal tunnel. If any injury has happened to that hand, there may also be a bone fracture causing those symptoms. Another likely possibility is onset of diabetes.
Pinched nerve in shoulder or c-spine
The median nerve, this nerve supplies feeling and movement to the thumb and "thumb-side" of the hand.
The location of the Herpes lesions will determine the nerve involvement. If the pain or numbness is on the "inside" of the arm and hand (the "pinkie" finger side), then it is ulnar in origin. If the symptoms appear on the "outside" of the hand and arm (the thumb side) then the nerve involved is the radial. Karin Ivester
Numbness along the thumb due to C5-C6 nerve root compression can vary in duration depending on the severity of the compression and the underlying cause. In some cases, it may resolve within a few days to weeks with conservative treatment like rest, physical therapy, or medication. However, if the compression is severe or left untreated, numbness could persist for months or longer. It's important to consult a healthcare professional for an accurate diagnosis and appropriate management.