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What Causes Extremely Large Breasts?

Published in Breast Health 2 mins read

Extremely large breasts, a condition known as gigantomastia, can arise from a few factors, although the exact cause is not completely understood.

Factors Contributing to Gigantomastia

Factor Description Example
Hormonal Changes Significant shifts in hormones, such as those that occur during puberty or pregnancy. Dramatic breast growth during teenage years or pregnancy.
Medications Certain drugs can trigger excessive breast tissue growth. Penicillamine or bucillamine.

Hormonal Changes

Hormonal fluctuations can significantly impact breast tissue.

  • During puberty, the body experiences a surge in estrogen and other hormones, leading to breast development. In some cases, this hormonal activity may cause excessive breast growth.
  • Pregnancy also involves major hormonal shifts, which can result in substantial increases in breast size. This is generally temporary, but it can trigger extreme growth in rare instances.

Medications

Certain medications have been linked to the development of gigantomastia.

  • Penicillamine and bucillamine are two drugs that can cause this condition. These medications are primarily used to treat conditions like rheumatoid arthritis.

Summary of Causes

It's important to note that gigantomastia is not fully understood, and research is ongoing. However, the most commonly identified factors include:

  • Hormonal changes, particularly during puberty and pregnancy, can sometimes lead to unusual breast growth.
  • Certain medications, such as penicillamine and bucillamine, are known to potentially cause gigantomastia.

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