diagnosis guide
If you’ve just received a medical diagnosis, or you’re concerned that something in your present or past health history might be jeopardizing your fertility, check here for quick info on common medical conditions and how they can affect conception and pregnancy.
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Sperm: Low Sperm Count
What It Is
Less than 20 million sperm per milliliter of semen is considered low. Healthy, fertile men may have upward of 100 million.
Who Gets It
Infections, surgery, and various hormonal and genetic disorders can diminish sperm production. So can a common condition known as varicocele, a swollen vein inside the scrotum. Men who take certain drugs for high blood pressure, inflammatory bowel disease, stomach ulcers, or heart disease are also at risk. Lifestyle factors that can lower sperm count include smoking, use of illegal drugs such as cocaine or marijuana, consuming more than two alcoholic drinks a day, being overweight, and exposure to sustained heat, such as in hot tubs, saunas, and steam rooms. Tight underwear and sitting for long periods -- even using a computer on your lap – may increase scrotal temperature and hamper sperm production.
Symptoms
For most men, the only sign of a low sperm count is the inability to father a child.
How It's Diagnosed/Detected
Low sperm counts usually are diagnosed by a semen analysis test in which a sample of semen is examined under the microscope to see how many sperm appear within squares on a grid pattern. If the doctor suspects a low sperm count is the result of an underlying medical condition, he may conduct further tests, such as blood tests, ultrasound of the scrotum to look for blockage or a varicocele, or a needle biopsy of the testicle.
How It Affects Fertility (And Pregnancy)
The lower a man’s sperm count, the less likely he will be able to father a child. Fewer than half the men with sperm counts between 12.5 and 25 million sperm per milliliter, and fewer than a quarter of men with counts less that 12.5 million, are able to get their partner pregnant.
Treatment
Remedies are available for a number of conditions that cause a low sperm count. A varicocele, for example, can be repaired surgically. If blood tests suggest an infection of the reproductive tract, antibiotics may cure it. Hormone replacement can correct an imbalance and restore fertility. Whether or not a medical cause is found, maintaining a healthy lifestyle certainly can help.
Pregnancy Prognosis
To improve chances of pregnancy, it’s important for the woman also to be evaluated. Treatments to boost female fertility can sometimes help compensate for a low sperm count. Assisted reproductive techniques, such as in vitro fertilization (IVF) in which eggs are fertilized with sperm in the laboratory, or intracytoplasmic sperm injection (ICSI) in which a single sperm is injected into an egg, are effective options because they require only a small number of sperm.
