Hair gets its color due to a pigment called melanin which is produced by the body. Many a times some hair can lack that pigment and thus look white. This has nothing to do with masturbation. I would not worry about one single white hair and this is deifnately not a sign of premature aging. I hope this helps.
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.