Hello,

Thanks for posting your query.

By the description provided by you I think that you are concerned about the muscle wasting of your hand.

It is most commonly caused by nerve compression syndromes or motor neuropathies.
Proper examination by a neurologist will help in proper diagnosis. Nerve conduction studies and electromyography will also be helpful in diagnosis.

Please get back to me with further details regarding your condition like;

1. Since when you are noticing this change in your hand.
2. Do you have any pain in the arm, like shooting type of pain?
3. Do you have weakness in your left arm or hand?
4. The withering you have noticed, How is it? Do you feel that your arm is getting smaller?
5. Or is it like the skin is getting wrinkled?

So that I will be in a better position to give you a better information.

I encourage you to consult a neurologist for the required investigations and further treatment.

I hope this answers your query effectively.
In case you have additional questions or doubts, you can forward them to me, and I shall be glad to help you out.


Wishing you good health.
Regards.

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