Last Updated on Nov 02, 2019

Breast Development in Teenage Girls

In 1948 a British Scientist called J.M Tanner was invited by the Ministry of Health to establish a long term study, on the growth of healthy children. He was accompanied by R.H Whitehouse.

During their research, the team followed and studied the pubertal growth of both young boys and girls. They measured and photographed the group every three to six months. It was during the end of their studies, they were able to determine that the completion of breast growth took around four years in girls, and categorized these developments into five stages.(5)

Stage 1: Preadolescent: There is usually a height spurt, with no pubic hair yet appearing. The breasts have no glandular tissues, however only the tips of the nipples are raised.

Stage 2: The Areola - which is the pigmented area around the nipples, enlarges becoming darker. The breast tissue called buds appear and the nipple raises to become a mound. Meanwhile, the body fat generally increases by about 18 to 19 % with a few darkened hairs appearing along the labia majora of the vulva.

Stage 3: Enlargement of the Breast - By this stage, it’s found that 20% of girls have their first menstrual period. The breasts are also slightly larger with glandular tissues present. It is found that most girls reach their maximum growth rate medically referred as peak height velocity by this stage.

Stage 4: Second Mound - By this stage, 50% of girls get their menstrual periods. For most girls, it is the end of their peak height velocity. But in some cases, it is found that girls can continue to grow 3 to 4 inches more.

During this period, there is a further development of the breast tissues. The areola and the nipples continue to become further raised, forming the second mound above the rest of the breast.

Stage 5: The budding breasts reach its final stage of development. Here, they are mature adult breasts by becoming rounder while the nipples rise slightly. By this time, it is quite common to find the pigmented hair growth on the inner thighs.


  1. Normal Breast Development and Changes - ( )
  2. Effect of Estrogen on Musculoskeletal Performance and Injury Risk - (
  4. Breast Anatomy - (
  5. Breast development - (
  6. Sternomancy - What Does Your Type of Breast Say About Your Personality? - (
  7. This Is What the Shape of Your Breasts Reveals About Your Personality - (


Heatherdallasusa Wednesday, April 6, 2016

What classifications are these? "Perfect breast shape" doesn´t sound scientific. The official breast types [IBSS] don´t define any "perfect breast shape". If you mean the breast type most people see as the most attractive, it is the U.S. Type of Breasts, but that type is not identical with what you call "perfect breast type". The U.S. Type of breasts have typically upwards pointing nipples, while here you talk about "parallel to the ground"? Its better to keep to the official breast types to avoid confusion.

arronlubrant Monday, November 10, 2014

This article was clearly written by a misogynist. The 'perfect breast'!? My god! This article sounds like it is from the 50s!

noname123 Sunday, November 10, 2013

how to get rid of Swooping Breasts. i am tired of it.

MedInconsiderate Friday, August 2, 2013

I remember I read this article probably two years ago which made me realize my breasts are "constricted or tubular", or according to Medindia, "severely deformed" and "surgery is suggested". Thank you for making the first description I ever read about breasts that resemble mine to be "severely deformed" and suggest surgery. Whoever wrote this article obviously has 0 concern for anyone's self esteem. CHANGE THE WORDING of your description so you don't make any more young girls feel any MORE ashamed than they already are about their "severely deformed breasts". There are a LOT more women with this problem than documented due to the shame and embarrassment involved. Your article makes it 20 times worse. Asshole.

anna1989 Saturday, June 8, 2013

hi my boobs is small but when i have sex my breast start to pain .what i must do? please help me

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