Decline male sperm production
What causes male fertility decline
Having a low sperm count can make conceiving a child difficult, but not other medications can impair sperm production and decrease male.
The infertility crisis is beyond doubt. Now scientists must find the cause | Science | The Guardian
What's causing this mysterious drop in sperm counts—and is there any . In this view, sperm production is a canary in the coal mine of male.
Description:Studies demonstrate that, even when controlling for the age of their partners since older men tend to have older female partners , increasing male age is associated with male fertility decline, defined as increased time to pregnancy and decreased pregnancy rates. For this reason, results are generally based on several samples taken over a period of time. Anti-sperm antibodies are immune system cells that mistakenly identify sperm as harmful invaders and attempt to destroy them. Semen and sperm reference ranges for men 45 years of age and older. Lower than normal sperm counts can result from testing a sperm sample that was taken too soon after your last ejaculation; was taken too soon after an illness or stressful event; or didn't contain all of the semen you ejaculated because some was spilled during collection. Cancers and nonmalignant tumors can affect the male reproductive organs directly, through the glands that release hormones related to reproduction, such as the pituitary gland, or through unknown causes.
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