The normal semen;
1. Quantity- 2-5 ml/ ejaculate
2. Number of spermatozoa- 20-150 millions/ml, should not be less than 15 millions/ml.
3. Morphology- No structural defect at least in 80-90%,
4. Motility- More than 95% motile
5. Fructose content- 150mg%
6. Liquefaction Time- 5 minutes.
There are many factors, which can affect the quality of sperm.
|English: Human sperm stained for semen quality testing in the clinical laboratory. Español: Espermatozoides humanos teñidos para examinar calidad seminal. (Photo credit: Wikipedia)|
According to Harvard Medical School
, men with obesity and/or on high saturated fatty diet, produce significantly less and weaker sperm. Excessive fat deposit in groin area can increase temperature of testes
, which can be detrimental to sperm production. Nature of job:
According to a research carried out at the universities of Sheffield and Manchester painters, printers, welders and builders are likely have poor quality of sperm due to increase in temperature of scrotum. Alcohol: Alcoholics
have 30 per cent fewer normal cells in their semen. Just one or two alcoholic drinks a day can increase the chances of having a low sperm count
, according to experts at the Mayo Clinic
in America. Smoking:
According to a study at the University of Saarland
in Germany smoking can affect sperm quality
. Diet: J
unk foods can lower the sperm count
by 43 per cent, according to US researchers. Vitamin C, zinc, vitamin E and beta-carotene have beneficial effect on sperm production. A diet rich in omega-3 fatty acids can also boost the quality. Tight pants:
Tight underwear can heat up the testicles, compromising the sperm production. Laptops:
Using laptop on lap can heat up testes by 2°C, even burn thighs. The electromagnetic radiation from Internet connection/WiFi also can affect the sperm production. Stress:
Stress can result in less healthy sperm. Varicocele and Hydrocele
can jeopardy sperm production by increasing temperature of testes. Hot water bath
: Regular hot water bath can have an adverse effect on sperm quality. Infection:
Mumps as well as leprosy affecting testes can sometimes cause atrophy of testis and hamper sperm production. Iatrogenic
: Accidental injury to vascularity of testes during hydrocele or inguinal hernia surgery can give rise to less sperm count. If both sides are destroyed there may be azospermia.