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Breast development, also known as mammogenesis, is a complex biological process in primates that takes place throughout a female's life. It occurs across several phases, including prenatal development, puberty, and pregnancy. At menopause, breast development ceases and the breasts atrophy.
The first physical sign of puberty in females is usually a firm, tender lump under the center of the areola of one or both breasts, occurring on average at about 10½ years of age. [51] This is referred to as thelarche. By the widely used Tanner staging of puberty, this is stage 2 of breast development (stage 1 is a flat, prepubertal breast ...
[1] [6] Moreover, puberty is considered delayed if breast development does not start at age 13 or if a female has not had her first period within three years of thelarche. [7] Additionally, secondary breast development occurring before the age of 7 years could be a sign of premature thelarche or precocious puberty. Of note, for some girls ...
Due to natural variation, individuals pass through the Tanner stages at different rates, depending in particular on the timing of puberty.Among researchers who study puberty, the Tanner scale is commonly considered the "gold standard" for assessing pubertal status when it is conducted by a trained medical examiner. [5]
Doctors aren’t clear why but early puberty may be a factor. More younger women are getting a type of hormone-related breast cancer. Doctors aren’t clear why but early puberty may be a factor.
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The indication is an excess breast weight that exceeds approximately 3% of the total body weight. [3] There are varying definitions of what is considered to be excessive breast tissue, that is the expected breast tissue plus extraordinary breast tissue, ranging from as little as 0.6 kilograms (1.3 lb) up to 2.5 kilograms (5.5 lb) with most physicians defining macromastia as excessive tissue of ...
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