The quality of the sperm is assessed with the help of a spermiogram. Find out more about this diagnostic tool here.
If the desire to have children is not fulfilled over a long period of time, infertility may be the reason. Read about possible causes and what you can do here.
There can be many reasons why a woman is infertile. Here you can read what they are and what you can do about them.
Improving sperm quality is a concern for many men. Read here what influences the sperm quality positively and negatively.
If a man is unable to reproduce, it can have many triggers. Find out which ones and what you can do about them here.