Male Infertility

male infertility causes

Male infertility may be due to:

  • A decrease in sperm count
  • Sperm being blocked from being released
  • Sperm that do not work properlyMale infertility can be caused by:
  • Environmental pollutants
  • Being in high heat for prolonged periods
  • Birth defects
  • Heavy use of alcohol, marijuana, or cocaine
  • Too little or too much hormones
  • Impotence
  • Infection
  • Older age
  • Cancer treatments, including chemotherapy and radiation
  • Scarring from sexually transmitted diseases, injury, or surgery>
  • Surgery to prevent pregnancy (vasectomy), or failure of vasectomy reversal
  • Retrograde ejaculation
  • Smoking
  • Use of certain drugs, such as cimetidine, spironolactone, and nitrofurantoin

In healthy couples under age 30 who have sex regularly, the chance of getting pregnant is male_infertilityabout 25 – 30% per month. A woman’s peak fertility occurs in her early 20s. After age 35 (and especially 40), the chances that a woman can get pregnant drops considerably.

Causes in either sex leading to Infertility

Factors that can cause male as well as female infertility are:Genetic factors

  • A Robertsonian translocation in either partner may cause recurrent spontaneou abortions or complete infertility.

General factors

  • Diabetes mellitus thyroid disorders, adrenal disease

Hypothalamic-pituitary factors

  • Hyperprolactinemia
  • Hypopituitarism
  • The presence of anti-thyroid antibodies is associated with an increased risk of unexplained subfertility with an odds ratio of 1.5 and 95% confidence interval of 1.1–2.0.

Environmental factors

  • Toxins such as glues, volatile organic solvents or silicones, physical agents, chemical dusts, and pesticides. Tobacco smokers are 60% more likely to be infertile than non-smokers.