Male infertility can be classified into four main types:
- No sperm (azoospermia) accounts for 3-4% of male infertility.
- Quantity or quality. This subgroup may account for about 90% of male infertility:
- Quantity: Poor sperm quantity (oligospermia)
- Quality :
- low motility (asthenozoospermia)
- a high percentage of abnormal sperm (teratozoospermia)
- Antisperm antibodies, etc.
- Sperm dysfunctional, where there is a normal semen analysis, but the sperm lack or have a defective fertilizing capacity, resulting in complete failure of fertilization or poor fertilization of the eggs in IVF. This accounts for 3-6% of male infertility.
- Inability to ejaculate into the vagina. This accounts for 4-6% of male infertility.
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