Thanks for the query.
I understand your concern.
The possible causes of white patches on skin are vitiligo, superficial fungal infections like tinea versicolor, eczema, psoriasis, overexposure to sunrays, excessive stress, vitamin B12 deficiency etc.
By examination only the exact cause and nature of the lesion can be identified and treatment can be planned accordingly.
So, please do consult your doctor, get examined and take treatment accordingly.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.