Male infertility could be  due to various disorders. A comprehensive analysis will only determine the  cause of male infertility. Here are some male fertility disorders. Read on to  know about them.If a couple is unable  to conceive, it is the sign one of the partners or both are infertile.  Infertility in males contributes significantly to the infertility problems  faced by couples. Undergoing certain tests can help to find out the 
causes  behind infertility in males and accordingly a suitable 
treatment  option can be chosen. Let us take a look at various male fertility disorders  that create hurdles for a couple to conceive.
Azoospermia
Azoospermia  characterized by the absence of sperm is either due to an obstruction in the  outflow system from the testicle, in the epididymis or vas deferens, or due to  a failure in sperm production (spermatogenesis). If a biopsy of the testicle  showed that spermatogenesis was normal, this would then indicate that an  obstruction was the cause of his azoospermia. Vasograms, which are X-rays of  the vas deferens can then be performed to identify the location of the  obstruction.
Presence  of Antibodies
Sometimes, a semen  sample when seen under a microscope, will show sperm clumping. This may  indicate the presence of sperm antibodies that are causing the sperm to stick  together. A blood sample can be tested for the presence of agglutinating and  other sperm inhibiting antibodies.
Klinefelter's  Syndrome
Very small testicles may be  the manifestation of Klinefelter's Syndrome. This is caused by a chromosomal  aberration. Thus, a chromosome investigation will show the presence of an extra  X (female) chromosome.
Hormone  Disorders
Hormone disorders are rare  causes of male infertility, but it may sometimes be helpful to check his  F.S.H., L.H., testosterone (male hormone), prolactin and thyroid hormone  levels.
Bacterial  Infection
The existence of an  excessive amount of white blood cells in the semen sample may indicate that an  infection may be reducing the ability of the 
sperm  to fertilise an egg. The semen sample should then be cultured to determine the  type of infecting bacterial organism.
Other  Infections
There are some infections  which can affect the quality of sperm as well as the amount of sperm that is  produced. Some infections may also cause scarring which can create barrier due  to which the sperms may not be able to pass freely. These types of infections  include infections like testicles (orchitis), epididymis (epididymitis) or some  sexually transmitted infections like HIV or gonorrhoea. Such types of  infections may also cause irreversible damage to the testicles. But there may  not be any difficulty in retrieving the  sperms.
Ejaculation  Problems
Sometimes on getting orgasm  while having a sexual intercourse the semen is thrown in the bladder instead of  getting ejaculated from penis. This condition is known as retrograde  ejaculation. Spinal injuries, surgery or prostate, bladder or urethra or  medical conditions like diabetes can be responsible for retrograde ejaculation.  Certain medications may also be responsible for causing retrograde  ejaculation.
Varicocele
If  there is swelling in the veins that drain the testicle, the fertility disorder  called varicocele is caused. But there is no need to worry as this disorder can  be treated effectively. Also there are no confirmed results that show that why  exactly varicocele cause disorder like 
infertility  in men. The causes of infertility are mainly attributed to the  inability to regulate the normal testicular temperature.  
Other Causes for Male Fertility  Disorder
Apart from the above mentioned  causes, there are lot of other factors that may cause infertility problems in  males. Below mentioned are some other factors that may cause male fertility  disorder.
- Certain surgeries
- Certain radiations
- Cancerous and non-malignant  tumours affecting the reproductive system of males,
- Injury or scarring of the tubes  carrying sperms
- Undescended testicles
- Celiac disease
- Difficulties in having sexual  intercourse
Although, there are innumerable known and unknown factors  that may lead to infertility in males, proper medical intervention can help the  couple to conceive. In most of the cases it is possible to retrieve the sperm  and use it in 
assisted  reproductive techniques. So, there is no need to worry as medical  science can help to find solutions for males with the above  problems.