What would happen if I never cut my hair?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)
Getting your hair cut regularly will help keep it healthy.

If you never cut your hair, it probably still wouldn't grow to a point where you would be walking on it. That's because each individual hair grows an average of six inches per year, and stops growing and is shed within two to six years. That means that each hair would probably reach a length between 12 inches and 36 inches before it was shed and new hair started growing in.

Hairs on our heads grow approximately half an inch per month and have an average lifespan of two to six years. From this, one can figure that an average person's hair shouldn't grow longer than about 3 feet or so.

.5 inches x 12 months x 6 years = 36 inches or 3 feet

Since some people's hair may grow a bit faster and might possibly remain attached for a longer time period, it's possible that someone's hair may grow even longer, say about 5 feet. That, however, would be much less common. So, it's highly unlikely you would resemble Cousin It of the Addams Family.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.