According to WHO
When a women is unable to bear a child either due to the inability to become pregnant or the inability to carry a pregnancy to a live birth following either a previous pregnancy or previous ability to carry pregnancy to a live birth.
Causes:
Anovulation, Irregular ovulation.
Recurrent miscarriage.
Endometriosis
Fibroids
Ashermann’s Syndrome.
Intrauterine adhesion.
Fallopian Tube blockage.
Genital TB.
Male factor.
Hormonal disorders, obesity
Endometrium problem.
Unexplained.
