Various Types of
It can be defined as when a couple has never been able to conceive a pregnancy after a minimum of one year of attempting it.
It is usually defined as the inability to conceive or able to carry a pregnancy to term after successfully and naturally conceiving one or more children.
When infertility is not absolute, that is, when there is a chance of pregnancy, but the chance reduces by each month, it is known as subfertility.
This usually occurs when healthy sperm are absent in the semen and incapable of traveling to meet the ovum.
As the name indicates, it happens in females. For a woman to be fertile, she should have healthy and functional reproductive organs.
If you want to learn more about infertility treatments and their causes then