Yes, hCG contributes to breast enlargement.
The pregnancy hormone human chorionic gonadotropin (hCG), along with progesterone, causes an increase in blood volume throughout the body. This increased blood volume is a key factor in causing the breasts to plump up during pregnancy.
How hCG Affects Breast Size
Here's a breakdown of how hCG contributes to breast enlargement:
- Increased Blood Volume: hCG, along with other hormones like progesterone, leads to a rise in blood volume.
- Breast Tissue Changes: This increased blood flow causes the breast tissue to expand and become more sensitive, resulting in a noticeable increase in size and fullness.
| Hormone | Effect on Breasts |
|---|---|
| Human Chorionic Gonadotropin (hCG) | Contributes to increased blood volume, resulting in breast plumpness. |
| Progesterone | Also contributes to increased blood volume, causing breast plumpness. |
Examples of Breast Changes During Pregnancy
- Early Pregnancy: Breast tenderness and enlargement are often among the earliest signs of pregnancy, due to the rising levels of hCG and progesterone.
- Throughout Pregnancy: Breast size typically continues to increase as pregnancy progresses, influenced by ongoing hormonal changes.
In summary, hCG plays a significant role in causing breast enlargement during pregnancy by contributing to the increased blood flow that makes the breasts swell.
