Low sperm count means that the fluid (semen) you ejaculate during an orgasm contains fewer sperm than normal. A low sperm count is also called oligospermia (ol-ih-go-SPUR-me-uh). A complete absence of sperm is called azoospermia. Your sperm count is considered lower than normal if you have fewer than 15 million sperm per milliliter of semen. Having a low sperm count decreases the odds that one of your sperm will fertilize your partner's egg, resulting in pregnancy.
Research: This was a cohort study exploring whether the consumption of fruits and vegetables with high levels of pesticide residues is linked to lower semen quality. This type of study cannot prove cause and effect, as other factors could be causing any effects seen. However, in studies of this type, researchers try to take account of other factors that can affect a health outcome.
Prevalence of retrograde ejaculation was 3.2% out of 2587 infertile patients. Within the group of 207 patients with hypospermia, 84 had retrograde ejaculation. After the treatment the seminal volume increased (from 1.2 to 1.5 milliliters) and the number of mobile cells increased (from 47.2 to 62.5 millions). The number of sperm in urine decreased (from 22 to 10 per high-power field). The patients with retrograde ejaculation had lower levels of follicle-stimulating hormone, luteinizing hormone and testosterone than those without retrograde ejaculation.