Gigantomastia, also known as breast hypertrophy or macromastia, is a rare condition that causes excessive breast tissue growth in people assigned female at birth.
It can cause breasts to grow rapidly and disproportionately, sometimes over several years. The breast tissue is usually benign. 
Gigantomastia, also known as breast hypertrophy or macromastia, is a rare condition that causes excessive breast tissue growth in people assigned female at birth. It can cause breasts to grow rapidly and disproportionately, sometimes over several years. The breast tissue is usually benign. 
Symptoms include: 
Discomfort in the shoulders, back, and neck
Redness, itching, and warmth on or beneath the breasts
Poor posture
Infections or abscesses
Loss of feeling in nipples
Gigantomastia can be caused by a number of factors, including: 
Idiopathic: No known cause, but can occur in women with a BMI greater than or less than 30
Hormonal imbalance: Related to puberty or pregnancy
Drugs: Can be a secondary cause
Gigantomastia can be associated with other conditions, such as hyperprolactinemia, hypercalcemia, and autoimmune diseases. 
Treatment depends on the severity of the condition and can include medical management or surgery. Early diagnosis is important because complications can be fatal. 

Text Credit: goggle/ AI overview
Video credit: tiktok/@michelle_kino