Infertility happens when a couple cannot conceive after having regular unprotected sex.
It may be that one partner cannot contribute to conception, or that a woman is unable to carry a pregnancy to full term. It is often defined as not conceiving after 12 months of regular sexual intercourse without the use of birth control.
In the India, around 10 percent of women aged 25 to 44 years are estimated to have difficulty conceiving or staying pregnant. Worldwide, 8 to 12 percent of couples experience fertility problems. Between 45 and 50 percent of cases are thought to stem from factors that affect the man.
Causes in men
Semen is the milky fluid that a man’s penis releases during orgasm. Semen consists of fluid and sperm. The fluid comes from the prostate gland, the seminal vesicle, and other sex glands.
The sperm is produced in the testicles.
When a man ejaculates and releases semen through the penis, the seminal fluid, or semen, helps transport the sperm toward the egg.
Semen and sperm
The following problems are possible:
Low sperm count: The man ejaculates a low number of sperm.
A sperm count of under 15 million is considered low. Around one third of couples have difficulty conceiving due to a low sperm count.
Low sperm mobility (motility): The sperm cannot “swim” as well as they should to reach the egg.
Abnormal sperm: The sperm may have an unusual shape, making it harder to move and fertilize an egg.
If the sperm do not have the right shape, or they cannot travel rapidly and accurately towards the egg, conception may be difficult. Up to 2 percent of men are thought to have suboptimal sperm.
Abnormal semen may not be able to carry the sperm effectively.
This can result from:
A medical condition: This could be a testicular infection, cancer, or surgery.
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