The exact cause is still a mystery, researchers not yet come with the correct information about the reason behind the acne. Some factors seems to be the cause but no strong evidence to prove it, as the reason differs from individual to individual.
Some factors considered to be the reason for acne are
• Change in the hormone level during puberty and pregnancy
• Genetic issues
• Deficiency of vitamins
• Improper food habit (not a healthy diet)
• Some kind of medicines like birth control pills
• Some beauty products
• Pollution
• Humidity levels
