Male infertility can be caused by series of
conditions. It is not a condition any man will like
to experience in life. Sometimes most of the
things we do in life, our lifestyle help to
encourage this soul killing condition. While some
people are born with it. Some young and singles
may be living with with it but with the feeling
that they are normal, only to get married one
day and when on the search for a kid will find
out that they are even in the same court of
infertility. Knowing the causes can at least help
start the hunt for a remedy. Here is a 5 list of
the common causes of male infertility.


Problems On Sperm Production:
For sperm cells to be produced normally the
various parts of the body that has being
assigned to these has to be working properly and
also communicate efficiently. As the process of
sperm production appears to be so complex, the
parts involved which includes: testicles,
hypothalamus, pituitary gland, etc, needs to
work relatively to one another to produce
healthy sperm, because one thing is to produce
sperms and another thing is to produce the
healthy ones. So many things and conditions can
cause low sperm count or make the sperm grow
weak, they include:

1. Varicocele
2. Infections
3. Ejaculation Problems
4. Tumors
5. Industrial Chemicals
6. Alcohol
7. Radiation
8. Overheating of the testicles
9. Smoking
10. Weight
E.T.C


Blocked Sperm Duct:
Blockage on sperm cell transport can cause
watery semen(semen that contains no sperm).
This blockage on the tubules that transport
sperm from the point of production towards the
penis can be caused by some conditions:

1. Vasectomy(cutting and removal of a
section of the vas deferen

2. Cognital Absence of the vas-deferens

3. Infections

4. Obstruction in region of prostrate
(infections on the postrate can cause
swelling and it will block the ejaculatory
duct)

Blocked sperm ducts is one of the common
causes of males infertility. Research has it that
it is the cause of infertility in 1 of every 5
infertile men.


Sperm Antibodies:
It is very possible to develop antibodies for
sperm cells. This occurs when certain conditions
which interrupts the normal process and barrier
between the part of the body which produces
the sperm and the part that conducts the
produced sperm to the exterior. When this
barrier is breached, the immune system of the
body will start recognizing the sperm cells as
being foreign. Like they will do to an invading
bacteria or any other harmful micro-organism,
the body’s immune system will begin to make
anti-bodies to combat the sperm cells. The
antibodies will cover the head of the sperm cells
and thereby slow down their motility rate and
cover their head to interfere with the acrosome
reaction of binding to an egg.


Sexual Problems:
Although they are not among the common causes
of infertility in males but i think they are worth
mentioning. They include, erectile dysfunction,
early ejaculation, etc. Erectile dysfunction
(impotence) is the condition whereby a man can
no longer get or keep an erection firm enough
for sexual intercourse. Internally, what happens
is that the tissue that makes up the penis
(penile tissues) cannot hold blood any longer.
This can either be that the blood vessels
supplying them are broken or malfunctioning. It
is when blood flows into the penile tissues that
erection could occur.
Early Ejaculation is the condition where a man
experiences early orgasm and is moved to expel
semen early during sexual activity, with minimal
stimulation


Hormonal Control:
In most cases, male infertility is caused by the
pituitary gland, it may send the wrong hormonal
message to the testes, causing low testosterone
level which will basically lead to low production of
sperm cells.

source:
http://cliniconomy.com/2014/05/5-common-causes-of-male-infertility/

I dont quite agree with you on the alcohol part. I know of heavy drinkers that has about 10 children. Infact i am telling you now that alcohol improves fertility in males.

Alcohol! No way. I have a personal buddy who's been taking Big Stout since the time we enter university years ago. The guy get a son, then a set of twins, boys! Abeg, comot alcohol... in fact alcohol should be a remedy. Don't you think so?

BITTER KOLA nko.......? Heard its spermicidal.

The same way cigarette smokers are liable to die young. and a heavy chain smoker will live for 90yrs healthy and happy. But another dude who just started smoking 2yrs ago dies of lung cancer or any other lung disease. Human beings are different with different genetic makeups. Medicine and science knew why they included alcohol in the list. And i think i know why and can tel u if u will like me to.