1 doctor weighed in:

Is arm itching a sign of some disease?

1 doctor weighed in
Dr. Morris Westfried
Dermatology

In brief: Maybe

Too non specific a sign, it is most likely just irritation and not a systemic disease.
Any other symptoms? Glands? Fever etc. Treat with Hydrocortisone cream for now unless it gets worse.

In brief: Maybe

Too non specific a sign, it is most likely just irritation and not a systemic disease.
Any other symptoms? Glands? Fever etc. Treat with Hydrocortisone cream for now unless it gets worse.
Dr. Morris Westfried
Dr. Morris Westfried
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