Thomas, at the bottom of this page you typed 'work in progress'. It's been in this state for a few months now. Time to start adding more.

Male Infertility

Male infertility refers to the inability of a male to achieve a pregnancy in a fertile female.
It is commonly due to deficiencies in the semen and semen quality is used as a surrogate measure of male fecundity

What causes Infertility in men?

There are many different causes of infertility in males such as:

  • ===Low Sperm Count===
===Exposing Testes to High Temperatures===Exposing the testes to high temperatures can affect the ability of the sperm to move and fertilize an egg. For instance, men with cryptorchism have testicles that do not descent into the scrotum. That means the testes are still inside the body cavity, which has a higher temperature than the external scrotum.
===Blocked Sperm Ducts===Blocked sperm ducts are also to blame for male infertility. A small number of men have vas deferens or sperm ducts that are blocked or damaged. This prevents the sperm from reaching the partner’s egg. Blocked sperm ducts can be a result of an infection such as mumps, injury to the testicles, congenital defects or a vasectomy.

===Drugs, Alcohol and Smoking===
Quite obvious - Too much Drugs, Smoking and Drinking will reduce fertility in males and females.

These are some but not all of the reasons that infertility can be attributed to.

How do I know if I am infertile?

The diagnosis of infertility begins with a medical history and physical exam by a physician, preferably a specialist with experience or who specializes in male infertility.
You will most likely be asked to give a sample of your semen for analysis. During the analysis of this sample, the physicians will examine:

  • The volume of the semen sample
  • Approximate number of total sperm cells
  • Sperm motility/forward progression,
  • and % of sperm with normal morphology are measured.

This is the most common type of fertility testing .

They may also take a blood sample.
This can reveal genetic causes of infertility, e.g. Klinefelter syndrome, a Y chromosome microdeletion, or cystic fibrosis.

Work in progress...