Infertility is a widespread problem. It is usually considered as female problem, but in fact in about 25% of infertile couple the problem lies solely in male partners and another 15-25% is male contribution.
Male infertility can be due to any of the following reasons:
Most common cause of infertility. Either there is no production or very low sperm production or sperm do not have the ability to fertilize the egg. This could be due to genetic problems, varicocele, high temperature in the groin area, undefended testes during birth etc
Though there is normal sperm production, but due to blockage in the passage from testis to penis, can cause lack of sperm in the ejaculated sample. This could be due to vasectomy, or absence of vas deferens or any recent infections
Health and environment related problem:
Idiopathic (Unknown reason):
It is single most useful and gold standard test to evaluate male infertility. It provides insight about the sperm production (Count) and sperm quality (Motility and morphology). It helps to assess the maturity of sperm and also about its interaction with the seminal fluid.
Before semen analysis, it is recommended to maintain an abstinence of 2-7 days. Sample should be produced in the clinic. Masturbation is the best way of sample collection as the entire sample is collected, especially the sperm rich first portion.
Semen Analysis involves:
i) Macroscopic analysis- to assess liquefaction, volume ,pH, viscosity
ii) Microscopic analysis includes sperm number (Count), movement of sperm (Motility), shape of sperm (Morphology), viability of sperm (Vitality), presence of round cells, antibodies
Semen culture is laboratory test, which helps in identifying the presence of micro-organism in the semen sample. The test report is available in 3-5days.
> No growth :
Indicates that the semen sample has no micro-organism
> Presence of Growth :
indicates presence of micro-organism. In the test report the name of the micro-organism and its effective antibiotics will be mentioned.
Blood test to check the hormone level namely FSH, LH, and Testosterone
Sperm Chromatin Dispersion test:
to assess sperm DNA fragmentation
Karyotyping, Y-Chromosome micro-deletion
The World Health Organization (WHO 2010) reference level (modified):
|Semen parameter||Meaning||Reference Range|
|Volume||The total amount of fluid ejaculated||≥1.5 mL|
|Total sperm number||The number of sperm in the entire ejaculate||≥39 million|
|Sperm count||The number of sperm per ml of semen||≥15 million per ml|
|Total motility (Progressive + Non- Progressive motility||The ability of sperm to move actively and all other patterns of movement e.g. Moving in small circles, flagellar beat||≥40%|
|Progressive Motility||The ability of sperm to move actively||≥32%|
|Sperm morphology||Shape of the sperm||≥4%|
|Semen pH||Measured to test if the ejaculate is acidic or alkaline. Semen should be slightly alkaline.||≥7.2|