Ovulation disorder is the main cause of infertility in women. 39 percent of infertility in women are related to this issue. Without ovulation, fertilization is not performed and therefore the woman won’t be pregnant. Some women may not ovulate or ovulate irregularly therefore may not have a monthly period or have a mildness in their menstruation, and even some women, even if they have a regular period, Have an ovulation disorder.
In some women, fallopian tubes are completely or incompletely closed. As a result, the sperm does not reach the egg. The closure of the fallopian tubes can be due to infection, endometriosis or adhesions after surgery. These tubes may also be closed after an ectopic pregnancy. In developing countries, the incidence of fallopian tube is higher than the developed countries due to the prevalence of infectious diseases in the reproductive system. 30% of women’s infertility problems are related to the fallopian tubes disorders.
Endometriosis is a condition in which the endometrium grows and extends beyond the uterus and covers the fallopian tubes and even closes them and in practice causes ovulation to interfere. Endometriosis is the cause of 13% of infertility cases, and about 70% of women with endometriosis are infertile.
Abnormalities in the cervix can cause infertility. The problems associated with this abnormality include problems with body building, cervicitis and womb infections, or inappropriate quality of the uterus secretions. On the other hand, the malignant tumors of the uterus or some of the wounds in the uterus are responsible for infertility.
Problems with the immune system and immunological factors play an important role in the development of infertility. It is difficult to diagnose and treat these patients. In some women, a substance called antibody is released against male’s sperm that eliminates or inactivates the sperm, or even causes spontaneous abortion in some pregnancies.