Infertility is defined as the inability to conceive a pregnancy after 12 months of unprotected sexual intercourse.  Causes of infertility are many and varied and involve male, female or a combination of factors. This includes problems with the production of sperm or eggs, the structure or function of male or female reproductive systems; and/or hormonal and immune conditions. In 40% of couples the cause of infertility is attributed to a sperm factor, in another 40% the cause is found within the female reproductive system, and a third will have a combination of male and female factors. 

Causes of Infertility in Women:

Defects in Ovulation:

The most common cause of infertility in women.

Damaged Tubes:

Full or partial obstruction of the tubes prevents sperm and egg from meeting, thus makes fertilization and pregnancy impossible.

Allergic Reasons:

Allergic reasons may be the cause of infertility, making their diagnosis and treatment very difficult.


Endometriosis is defined as the development of the tissue that normally covers the inside of the uterus (Endometrium), outside of the uterus.

Problems of Uterus:

Disorders of the cervical structure, infection, or secretion (Mucus) in this region may be the cause of infertility.

The Causes of Infertility in Men:

Sperm Production Disorders:

It is caused by the weakness of the sperm shape, number or motility.

Structural Defects:

Full or partial blockages that prevent the sperm from exiting the testes, (where the sperm is produced), may be the cause of infertility.

Environmental Factors:

Working in extreme heat, sitting continuously and breathing chemicals, are some of the reasons for infertility. Many but not all of the activities in your normal life may lead to infertility; for example, the stress in your work life may even be the cause of infertility. People, who cannot have children, must first make a change in their way of life. Smoking must be quitted. Alcohol should be avoided. One should not be seated continuously, work in extreme heat and should have a healthy diet.