Infertility is definitely not a physical disease. Unlike simpler conditions like flu or the more complex ones such as those of cancer, symptoms of infertility are not focused on the obvious signs.

In fact, a woman need not undergo a series of comprehensive tests and examinations before she can truly be diagnosed of infertility. The same goes with men only differing in one thing, male infertility is much more difficult to be spotted unless obvious presentations of erectile dysfunction are seen.

Pelvic Inflammatory Disease or PID

This is presumed to be the most common cause of infertility. This arises from internal infections that are caused by bacteria penetrating into the internal reproductive organs of a female. The typical organs affected are those surrounding the pelvic area but when aggravated, infections may also radiate into the neighboring intestines. Infertility associated with PID is definite if the portion affected is the fallopian tube, a condition that is medically termed as salpingitis.

Endometriosis

According to data gathered from medical literature, nearly 30% of all infertility cases in women is covered by this condition. This is characterized with the presence of the endometrial tissue in parts other than the uterus. This tissue is the one women discharge during menstrual cycle.

Having this condition however does not actually suggest the likelihood of being unable to conceive. But it may largely contribute to the development of the disease

Polycystic Ovarian Syndrome

This is the condition characterized by the over-production of androgens in the female's system. This occurrence will drive the lowering in the release of other hormones such as Follicle Stimulating Hormone and Luteinizing Hormone which will eventually caused the stoppage of mature egg production.

Early Menopause or Premature Ovarian Failure

This is the premature depletion of follicles in women during ages prior to her 40th years. This is characterized by long periods of irregular menstrual flow. This condition is very much comparable with true menopause since both impede a woman to produce eggs.

Idiopathic Hypogonadotropic Hypogonadism

This is rarely the case among infertile women. This is identified when there is 'no' production of LH and FSH. Thus, the impossibility of developing egg cells. There are actually no physical symptoms that will help conclude the presence of this condition. Most cases of Idiopathic Hypogonadotropic Hypogonadism fall under unknown infertility cases.