Any woman who is unable to conceive and maintain pregnancy is infertile. A woman can be able to know if she is infertile if she attempts getting pregnant for 1 year and there is no positive result. The common causes of infertility are:

Ovarian cysts

An ovarian cyst is a fluid filled sac that develops in or on the surface of an ovary. The ovarian cysts that affect fertility are:

Endometriomas which are cysts caused by endometriosis;  a condition in which the tissue normally lining the uterus grows outside the uterus.

Cysts that result from Polycystic Ovary Syndrome. The syndrome is associated with irregular ovulation. This syndrome is a condition marked by many small cysts on ovaries, irregular periods and high levels of certain hormones.

Hormonal imbalance

Hormones play a key role in defining the overall health and well-being of every woman. Hormonal imbalance is a malfunction of 1 or more hormones in the body. When too much or too little of any  hormone is produced ,body processes are not carried out correctly and problems come up. A hormonal imbalance causes infertility by disrupting ovulation, preventing the thickening of the uterine lining and hence preventing pregnancy from being established.

Poor nutrition

Lack of specific vitamins, minerals and other nutrients that are important  for a fully functioning reproductive system causes infertility. Highly refined and processed products that are full of additives and preservatives have very low nutritional value. Sometimes if conception occurs, miscarriage can happen because of poor diet.

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A tumor is a swelling of a part of the body caused by abnormal growth of tissue. Tumors lead to destruction of hormone secreting cells causing cessation of menstrual periods in women.

Pelvic infection

This infection causes a scar tissue in the pelvic organs and leads to infertility. It is caused by bacteria entering the reproductive organs through the cervix. Infection of the cervix makes easy penetration of the bacteria into the uterus and Fallopian tubes. Mild symptoms such as discharge from the vagina are an indication of this infection.

Sexually transmitted diseases

Gonorrhea and Chlamydia are the two most frequent cases of infertility. They are a result of unprotected sexual intercourse with multiple partners.

Some causes of infertility are treatable while those that are not, assisted conception and adoption are considered as alternative ways of starting a family.