As we mentioned in previous articles, infertility is defined as inability of a couple to conceive after 12 months of unprotected sexual intercourse. It effects over 5 millions couple alone in the U. S. and many times more in the world. Because of unawareness of treatments, only 10% seeks help from professional specialist. In this article, we will discuss the medical condition causes of infertility.

1. Nervous disorder
Nervous disorder increases the production of certain hormone in the nervous system and the glands leading to hormone imbalance and interfering the normal procedure of menstrual cycles in women and lowering sperm count in men, leading to infertility.

2. Hypogonadotropic hypopituitarism
It is types of disease which interferes with the production of LH and FSH of the pituitary gland causing ovulation problem in women and low sperm count in men.

3. Immune disorder
Malfunction of immune system interferes with the reproductive process including the inflammation to cells which are vital involved in the processes of ovulation , preparation for implantation of a embryo ( malfunction of endometrial lining) and sperm quality ad quantity (Antibody attack his own sperm).

4. Pelvic inflammation disease (PID)
PID is defined as a condition of an acute infection in the pelvic caused by sexual transmitted diseases leading infertility if the scar forming in the Fallopian tube blocks the tube completely.

5. Pituitary tumor
Pituitary tumor is defined as a condition of benign overgrowth of cells in the pituitary gland causing abnormal function in secreting hormone, leading to over production of growth, thyroid-stimulating, prolactin hormones, etc. disrupting the normal processes of the reproductive organs thereby, increasing the risk of infertility in both men and women.

6. Testicular cancer
Testicular cancer is defined as abnormal cells growth become cancerous in the testicle. The cause is unknown but researchers believe men with poor quality of sperm production is considered as high risk to develop testicle cancer than other who do not.