WHAT IS GYNAECOMASTIA?
Gynaecomastia (sometimes referred to as 'man boobs', or moobs, is a common condition that causes boys’ and men’s breasts to swell and become larger than normal.
It is most common in teenage boys and older men.
It can be caused by an imbalance between the sex hormones testosterone and oestrogen.
Oestrogen causes breast tissue to grow. While all men produce some oestrogen, they usually have much higher levels of testosterone, which stops the oestrogen from causing breast tissue to grow.
If the balance of hormones in his body changes, this can cause a man’s breasts to grow. Sometimes, the cause of this imbalance is unknown.
The growth in breast tissue is not due to extra body fat from being overweight, so losing weight or doing more exercise will not improve the condition.
During puberty, boys’ hormone levels vary. If the level of testosterone drops, oestrogen can cause breast tissue to grow. Many teenage boys have some degree of breast enlargement.
As men get older, they produce less testosterone. Also, older men tend to have more body fat, and this can cause more oestrogen to be produced. These changes in hormone levels can lead to excess breast tissue growth.
Other causes:
side effects of medication, such as anti-ulcer drugs or medication for heart disease
illegal drugs, such as cannabis or anabolic steroids
drinking too much alcohol
a health abnormality, such as kidney failure or liver disease
Klinefelter’s syndrome, a rare genetic disorder
lumps or infection in the testicles
Read more: http://www.dailymail.co.uk/health/article-2784758/Teenage-boy-B-cup-breasts-aged-13-sells-car-pay-moob-reduction-surgery.html#ixzz3FcpgJRur
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