What Causes Sterility?
Sterility is classified into two groups, primary and secondary. • Primary sterility means that a pregnancy has never occurred. • Secondary fertility involves one or both partners who have conceived previously, but are now unable to do so because of a possible physical or medical condition impairing fertility. A woman who keeps having miscarriages is also considered infertile. Risk factors for both men and women are the same and these include age, stress, being underweight or overweight, diet, smoking, alcohol and drugs. Age plays quite a critical role, as fertility peaks for both men and women in their mid-twenties. Male fertility starts declining in their thirties, while women older than 35 years may experience problems conceiving. Certain medical conditions such as diabetes, thyroid disease and anemia may also affect fertility.
