What are all the causes of male infertility?

Answer 1

While there are many causes of male factor infertility, some are seen more commonly than others. These top causes of male factor infertility account for the majority of cases of infertility in men. Here is a listing of the top causes of infertility in men, in no particular order.


Blockage of Sperm
The vas deferens that carries sperm from the testicles to the penis can be blocked for a variety of reasons including prior vasectomy, injury, infection or physical anomaly.

Infections.
There are many types of infections that might cause sterility or low sperm counts in men. These can be recent infections or from childhood. Common infections can be mumps or certain types of sexually transmitted infections (STI).

Chronic Disease
Diseases that can effect hormonal controls and sperm production, particularly when not controlled are also causes of infertility. Diabetes, hypertension and other problems can all effect the fertility of men.

Erectile Dysfunction (ED)
If you have a problem getting or maintaining an erection then there will be problems getting the sperm out. Sometimes this is caused by a chronic illness like hypertension or heart problems, it can also be caused by paralysis.

Failure to Produce Sperm
If the body isn't producing sperm there can be many reasons. Some may be from hormonal issues of testicular failure, while others may be from treatments for certain illnesses and cancer like chemotherapy and radiation therapy.

Exposure to Harmful Substances
Environmental or work hazards can also lead to problems with fertility.

Injury
If you have experienced injury to your testicles you may also have issues with sperm production.

Varicocele
This is a varicosity, or varicose vein in the testicle. The varicosity damages the blood flow to the testes, making sperm production slowed or stopped.
While the treatments and outlook for these causes of infertility in men differ, there may be treatment options for you. Be sure to talk to your doctor or reproductive endocrinologist about what outlook and treatment is best in your case.

Answer 2

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Answer 3

Sperm problems are the leading cause, and account for perhaps 75% of male infertility cases. On average about 100–750 million sperm are ejaculated during orgasm, but only a few hundred make it to the fallopian tube where the egg is fertilized. Any reduction in the sperm count or any problem with their quality reduces the chances of conception. To be of good quality, sufficient numbers of sperm must be "motile", i.e. moving positively rather than aimlessly swimming around in circles, and normally shaped rather than malformed. Enough sperm must also be capable of escaping from the seminal fluid in which they were ejaculated and of penetrating the woman's cervical mucus as well as the egg's outer covering. Testing for low sperm counts and other fertility issues raises extremely sensitive subjects. For many people, these fertility tests (especial sperm count testing) are embarrassing, especially if one has to take a test in a public facility, clinic or medical office. That's why there are fertility products and sperm count testing kits available for use in the privacy of your own home. You can read more about them here

Answer 4

Putting your laptop on your lap could lead to male infertility.

Answer 5

Family history mainly. Other things that related to male reproductive system and possibly disease. Also and i know that for the fact.....when a babe boy is in his infant stage a lot of mothers use diapers. Now its is fine but only until an age of 1 or 1 1/2. Pass that you need to teach them how to use a lil boys room. Apparently studies showing that by wearing diapers all the time semen is getting too warm inside. It dies and so on. Now also male organs are not breathing at that stage. Constant use of diapers after age of two is high risk or getting yourself a son that is later not producing semen.

Answer 6

I just went through that. First get your prostate checked. I had an infection and didn't know it.

Answer 7

Abuse of the testicles, being hit in them!
Smoking
Heriditory
Cancer
Vasectomy
Blocked tubes

And other reasons

http://en.wikipedia.org/wiki/Infertility#Male_Infertility