Retrograde ejaculation: Men cannot ejaculate due to diabetes, sclerosis, spinal injury, prostate gland surgery etc. As a result reproduction is not possible.
Absence of sperm: Some men have sperm in their semen. Absence of sperm is called infertility or azoospermia. 5% of men in the world are infertile.
Low sperm count: A man’s semen contains fewer sperm than the amount of sperm needed to fertilize an egg. Therefore, the egg is not fertilized. Low sperm count is the main cause of infertility in more than 90% of men.
Abnormal sperm: Sperm with two heads or two tails or without head or tail are seen in the semen. These are called abnormal sperm. A high abnormal sperm count can cause fertility problems.
Premature ejaculation: The fall of the sperm before entering the male genitalia inside the female genitalia.
Premature sperm: If the male sperm is not fresh and active, it cannot attack the egg. Dysfunctional sperm cannot cause fertilization.
Impotence: Impotence, impotence, or impotence is when the semen ejaculates before intercourse. An impotent man cannot contribute to reproduction.
Hormonal imbalances: Abnormal secretion of testosterone and androsterone hormones causes reproductive problems.
Sexually transmitted diseases: Sexually transmitted diseases like syphilis, gonorrhea, AIDS etc. cause low sperm production, sperm health is damaged and sperm movement is obstructed. It interferes with reproduction.
Auto-immune: Male blood contains anti-sperm antigens. These antigens kill sperm. This is called auto-immune. Auto-immune males 5-10%.
Congenital abnormalities: Male spermatic cord is damaged or blocked due to birth defects. In this, sperm cannot be released and the male becomes sterile.
Varicoceles: Swelling of the pampiniform plexus veins of the male scrotum and blocking blood flow. This is called varicoceles. In erogen, sperm production decreases and sperm health deteriorates. 20% of adolescents and 15% of males are affected.