What causes small red bumps on the arm?
Disease description:
This morning, upon getting up and dressing, I suddenly noticed many small red bumps on my arm. What could be the cause of small red bumps on the arm?
Doctor's answer (1)
Dr. Yan Min
If small red bumps on the arms have been present for a short period, they may be due to insect bite dermatitis, primarily caused by insect bites. If there are small red spots on the arms accompanied by recurrent itching and similar symptoms, this is commonly associated with dermatitis or eczema, mainly resulting from exposure to certain allergens. In addition, small red bumps on the arms with a rough surface may indicate keratosis pilaris, a common skin condition.
