So simply defining it's a condition when a couple is unable to conceive and become parent even after trying for a year or more. Contrary to the notion, both male and female can be infertility. In the case of women, the primary reasons are endometriosis, utrine fibrinoids, thyroid diseases, and even hormonal imbalances. In case of the men, low sperm count or testosterone level could be the major factors leading to infertility. Even age has a major role to play in one fertility