During the year period from to we evaluated 60 boys who were more than 9 years old and who had significant breast development greater than 4 cm in diameter around the time of puberty. An endocrine abnormality was identified in seven subjects. The pathology included Klinefelter's syndrome; 46,XX maleness; primary testicular failure; partial androgen insensitivity; fibrolamellar hepatocarcinoma; and increased aromatase activity.
Ah, puberty. It can be a very interesting time in a guy's life, what with all the changes going on. In fact, it seems like every day something on your body grows bigger or hair begins sprouting somewhere.
Puberty — it's a crazy time and occurs through a long process, beginning with a surge in hormone production, which in turn causes a number of physical changes. Every person's individual timetable for puberty is different. Below is an overview of some physical changes boys can expect during these years.
Regular exposure to everyday products used by many people may be causing young men to grow breasts, a new study from the National Institute of Environmental Health Sciences suggests. This coincides with exposure to tea tree oil, commonly used as an "alternative" antiseptic, and lavender oil, used in "aromatherapy" or as an alternative sleep aid. Several boys, some as young as four, developed breast tissue after being exposed to the oils, leading to an investigation of the link some years ago. However, if you think you can escape them because you don't go in for these kinds of alternative treatments, the oils are also found in soaps, lotions, hair products, cologne, shampoos, and laundry detergents.
Gynecomastia, the benign enlargement of male breast tissue, is a common occurrence in adolescents as well as in middle-aged and older men. While there are several reasons why men develop breast tissue, it is usually not a health concern, often resolves on its own, and is generally treatable, according to a clinical practice article appearing in the September 20 issue of the New England Journal of Medicine NEJM. The clinical practice article, a regular NEJM feature that focuses on a case history highlighting a common clinical problem, was authored by Glenn D.
Back to Men's health. Gynaecomastia sometimes referred to as "man boobs" 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.
Both boys and girls have breast tissue. Normal breast development first appears shortly after birth, and then again at the beginning of puberty. The timing of breast development varies greatly from one person to another and in some girls may not occur until well into the teenage years.
With gynecomastia, tissue inside the breast glands grows. This can cause female-appearing breasts. Gynecomastia guy-nuh-koh-MAS-tee-uh is swelling of the breast tissue in boys or men, caused by an imbalance of the hormones estrogen and testosterone.
Scientists have, for the first time, studied the prevalence of breast development in Danish boys, and the new study suggests that more than half of all Danish boys develop mammary glands during puberty. He points out that the small male breasts are usually harmless, but that for many adolescent boys the female attributes lead to worry and embarrassment. Paediatrician Kurt Kristensen at Aarhus University Hospital, who did not take part in the study, is not surprised by the new findings:.