Infertility can be understood as the inability of a couple (in child-bearing age) to conceive after at least twelve months of frequent intercourse without using any birth control method. It is one of the most common issues treated by Dr. Majid Fateh of New York Fertility Institute. About 10 percent of women aged 15 to 45 in the United States have difficulty conceiving or sustaining a pregnancy. Worldwide, about 12 percent of couples are living with fertility problems. About half of infertility issues stem from male-related factors while the other half can be explained by female-related factors. Below are some causes of Infertility in men and women.

Causes of Infertility in Men
There are many issues that can lead to infertility in men. Some of them include: Sperm Production and Function Problems
There are a number of factors that can affect the production of sperm. For instance, issues such as gonorrhea, mumps, diabetes, genetics, and even undescended testicles. Varicocele, also known as enlarged testes veins, is also known to affect the quality of sperm.
Problems with Sperm Delivery
In some cases, the production and the quality of sperm is okay and the only problem has to do with how they are delivered during intercourse. Issues that can interfere with sperm delivery include premature ejaculation and some genetic diseases like cystic fibrosis, among others.
Environmental Factors
Exposure to some environmental factors such as heat, radiation, and chemicals can have negative...