* Biological factors: Some women are born with conditions that make it impossible for them to get pregnant or carry a pregnancy to term. These conditions include uterine abnormalities, hormonal imbalances, and genetic disorders.
* Medical conditions: Certain medical conditions, such as cancer, diabetes, and heart disease, can also make it difficult or impossible for a woman to get pregnant or carry a pregnancy to term.
* Lifestyle factors: Some lifestyle factors, such as smoking, drinking alcohol, and using drugs, can also reduce a woman's chances of getting pregnant or carrying a pregnancy to term.
* Personal choice: Some women choose not to have children for personal reasons, such as financial or career considerations.
It is important to note that not all women who never give birth are infertile. Infertility is a medical condition that affects a woman's ability to get pregnant or carry a pregnancy to term. Many women who never give birth are not infertile and could potentially get pregnant if they wanted to.