This is an important point because myths about genital appearance have historically been used to judge or shame women.
Scientific understanding of human anatomy shows that such assumptions are unreliable.
The body is not a record of someone’s personal history.
Breast size also has no reliable relationship with fertility.
Having larger or smaller breasts does not automatically mean that a woman is more or less fertile.
Fertility depends on many factors involving reproductive organs, hormones, ovulation, age, genetics, overall health, and other biological circumstances.
Similarly, breast size does not determine whether someone will have difficulty becoming pregnant or whether they will experience pregnancy normally.
Pregnancy and breastfeeding can change breast size and appearance, but these changes occur because of hormonal and physiological processes rather than because breast size predicts another part of the reproductive system.
Another reason the myth persists is that people sometimes confuse sexual attractiveness with biological function.
Breasts are a secondary sexual characteristic, while the vagina is part of the reproductive and sexual anatomy. Both can be influenced by hormones, but that does not mean that their physical characteristics provide a reliable measurement of each other.
Human anatomy is more complicated than that.
The same principle applies to other body parts.
Someone’s height does not tell you the exact size of their hands.
The size of someone’s feet does not reliably reveal the size of their ears.
And breast size does not reveal vaginal anatomy.
There may be statistical relationships between some physical characteristics in certain populations, but a statistical association is not the same thing as a reliable prediction about an individual.
That distinction is especially important when discussing intimate anatomy.
People are naturally curious about the human body, and curiosity itself is not a problem. The problem arises when myths are presented as scientific facts.