What Causes Large Breasts in Women — And Is There Any Link to the Vagina? When it comes to the female body, breast size often draws attention and sparks curiosity. One common question is: What causes a woman to have large breasts — and does it have anything to do with her vagina? Let’s clear things up using science, not myths.
Breast size is influenced by several natural and biological factors, including:
Genetics – Breast size is mostly inherited. If close female relatives have large breasts, it’s likely you will too.
Hormones – Estrogen and progesterone, especially during puberty, pregnancy, or hormonal treatments, can increase breast size.