If the fallopian tube is damaged or does not function efficiently because it is blocked, it will prevent sperm from reaching the egg for fertilization, and this condition also inhibits the arrival of fertilized eggs into the uterus.
The tissue that lines the uterus can grow outside, and this tissue often grows in the ovary and oviduct, causing irregular menstruation and the inability to reproduce as well.
Emboli is a hormonal disorder that causes small ulcers on the edge of the outside ovary and leads to more male hormone production than usual, often causing cycle irregularities and increasing the risk of diabetes and obesity.
Many women suffer from fibrosis problems, which are muscle growth in the uterus that may be non-cancerous, fibroids usually grow in the uterine wall and inside the cavity, and rarely extend to the outer surface.
Thyroid hormones are the key to regulating female ovulation, these glands play an important role in the formation of pregnancy, therefore, low thyroid hormone levels can cause ovarian ovulation, causing infertility.
Amount and quality of eggs
A woman's ovaries produce different numbers of eggs each time, and sometimes eggs are not very efficient for successful pregnancies due to several factors, including age that affect egg quality.