When do guys stop growing?

When do guys stop growing?

Growth in boys takes place over a long period, so it is difficult to know when it ended. Each person grows at a different rate, and puberty starts and ends at different times. Puberty can last for 2 to 5 years. During puberty, the boy goes through many changes. On average, boys start puberty at age 12. The fastest growth rate occurs 1–2 years after the onset of puberty. Most boys stop growing by age 16 and develop completely by age 18. 

Factors affecting growth in boys


Genes play a role, and parental height is an indicator of how tall a child will be. To determine what the height of the boy will be, it is necessary to add the height of the mother and father in centimeters, divide this number by 2 and add 6 cm.This calculation is approximate and, in general, it is impossible to say exactly what the height of the child will be.

Chronic diseases

Chronic diseases such as arthritis and genetic conditions such as Down syndrome can cause a person to be shorter than expected.

Diet and environment

Diet and environment can affect growth. Globally, malnourished children will not be as tall and strong as those on a balanced diet. Diseases, genetic conditions, and certain medications can stunt growth. An imbalance in hormones in the body can slow or accelerate growth.

When to see a doctor

A parent or caregiver should see a doctor if the boy:

  • growing much faster or slower than expected;
  • much shorter or taller than other children of his age;
  • the boy does not have sexual development at the age of 14.

General recommendations for the growth of boys

Eating healthy and staying active will help your youngster achieve his potential growth. Teenagers need 8-10 hours of sleep a day. Sleeping well means going to bed at the same time every night.

Boys need to know that growth takes time. Developing self-esteem through positive family and friendships, hobbies and interests can all help boys cope with puberty.

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