-Ovulation disorder such as:
1) Hormonal disorder
2) Scarred ovaries e.g. extension, invasion of multiple surgery for (morning & evening) repeated ovarian cyst
may cause the capsule of the ovary to become damaged or scarred
3) Premature Menopause
4) Follicle problem
-Poor functioning Fallopian tube.
-Abnormal Uterus such as
1) Fibroid Polyps & Adenomyosis may lead to obstruction of the uterus & fallopian tube.
2) Diet & exercise, smoking, alcohol, drugs, infection, stress &age.