Brief Answer: nutritional deficiency, fungal infection Detailed Answer: Hi, Thanks for the query. The possible causes for the white patch are : - Nutritional deficiency. Sometimes deficiency of vitamins D, E, calcium can lead to white patches over skin. -Fungal infection. Tinea versicolor infection can lead to white patches over skin. - Rarely depigmentation conditions like nevus depigmentosus, vitiligo etc. So, once consult dermatologist and get examined. By examination the exact cause of the patch can be identified and treatment can be taken accordingly. Hope I have answered your query. I will be available to answer followup queries. If you are satisfied with the answer, please give your review at the end of the discussion. Take care.

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