Knowledge Access: Infertility Reasons

1. Male Infertility Reasons:

Not producing healthy sperm: At least one of the testicles must be functioning correctly, and the body must produce testosterone and other hormones to trigger and maintain sperm production.
Any blockage in transportation ducts.
Production of low sperm less than 2ml.
Sperm must be non functional and unable to move.
Any Infections in male reproductive system. (Ex: STI)
Age of an individual.
Varicocele: A varicocele is a swelling of the veins that drain the testicle. It's the most common reversible cause of male infertility.
Illicit drug use. Anabolic steroids taken to stimulate muscle strength and growth can cause the testicles to shrink and sperm production to decrease.
Alcohol use. Drinking alcohol can lower testosterone levels, cause erectile dysfunction and decrease sperm production. Liver disease caused by excessive drinking.
Tobacco Smoking. Men who smoke may have a lower sperm count than do those who don't smoke. Second-hand smoke also may affect male fertility.
Emotional Stress: Stress can interfere with certain hormones needed to produce sperm. Severe or prolonged emotional stress, including problems with fertility, can affect sperm count of an individuals.
Genetic disorders and chromosomal abnormalities cause male infertility.
Excess Weight.

2. Female Infertility Reasons:

The most common causes of female infertility include problems with ovulation.
Damage to fallopian tubes or uterus, or problems with the cervix.
Age can contribute to infertility because as a woman ages, her fertility naturally tends to decrease.
Genetic disorders and chromosomal abnormalities cause female infertility.
Abnormal cervical mucus can also cause infertility. (prevent sperm entry).

2.1 Ovulation problems may be caused by one or more of the following:

2.2 Damage to the fallopian tubes or uterus can be caused by one or more of the following:

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