MICROANATOMY

Detailed explanation-1: -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.

Detailed explanation-2: -In adult males, gynecomastia is usually caused by another condition, such as liver or lung cancer, cirrhosis of the liver, overactive thyroid, or by hormone problems, such as cancer of the pituitary gland, adrenal glands, or testicles. Alcohol, marijuana, methamphetamine, and heroin use also may cause gynecomastia.

Detailed explanation-3: -Breast enlargement is usually caused by an imbalance of estrogen (female hormone) and testosterone (male hormone). Males have both types of hormones in their body. Changes in the levels of these hormones, or in how the body uses or responds to these hormones, can cause enlarged breasts in males.

Detailed explanation-4: -Up to 70 percent of boys in early to mid-puberty experience gynecomastia because of the normal hormonal changes that occur during puberty. Gynecomastia is also common among middle-aged and older men. In this population, up to 65 percent of men are affected.