Are small breasts a sign of infertility?

No, having small breasts is not a sign of infertility. At SCI Hospital, we reassure women that breast size is determined by factors like genetics and the amount of fatty tissue, and it has no bearing on a woman's ability to conceive or carry a pregnancy. The hormones primarily responsible for fertility are different from those that determine breast size, though there's some overlap in hormonal influence on the body overall. Women with all breast sizes can be perfectly fertile and have healthy pregnancies.