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Breast Cancer Risk in American Women - National Cancer Institute
The Tanner scale also known as the Tanner stages or Sexual Maturity Rating SMR is a scale of physical development in children , adolescents and adults. The scale defines physical measurements of development based on external primary and secondary sex characteristics , such as the size of the breasts , genitals , testicular volume and development of pubic hair. This scale was first identified in by James Tanner , a British pediatrician, after a two-decade-long study following the physical changes in girls undergoing puberty. Due to natural variation , individuals pass through the Tanner stages at different rates, depending in particular on the timing of puberty. In HIV treatment, the Tanner scale is used to determine which regimen to follow for pediatric or adolescent patients on antiretroviral therapy adult, adolescent, or pediatric guidelines. Sometime during Tanner 5, females stop growing and reach their adult height, usually this happens in their mid teens at 15 or 16 years for females. Males also stop growing and reach their adult height sometime during Tanner 5, usually this happens in their late teens at years for males.
Age and Cancer Risk
When do girls and boys start puberty, and what age is too young or too late? What is the sequence of bodily changes that take place? Puberty normally occurs in a series of five stages Tanner stages that typically begins between the ages of 8 and 13 for girls and 9 and 14 for boys.
Back to Sexual health. Girls develop breasts and start their periods. Boys develop a deeper voice and facial hair will start to appear. But it's different for everyone, so don't worry if your child reaches puberty before or after their friends. It's completely normal for puberty to begin at any point from the ages of 8 to