How Does Low Sperm Motility Affect Getting Pregnant?


There are many factors in a couple’s journey to conception. The two most obvious are the egg and the sperm that are required to meet in the fallopian tubes. There are many things that women can do in order to improve hormonal health and improve the condition of their eggs.

Overall health can also be a major factor in the health of their gametes (sex cells—eggs for women and sperm for men). There are many things that a man can do to improve the health of his sperm—not drinking or smoking, or using any street drugs is the best place to start. This may improve the volume and motility of his sperm.

What is sperm motility? Sperm motility refers to the movement of sperm. In a healthy man, normal sperm motility is considered to be 50%– that is, at least half of all the sperm in a sperm sample should be traveling forward. If a man’s sperm sample has less than 50% motility, it is considered to have low sperm motility.

Sperm motility is important for fertility because sperm needs to be able to travel forward up the vagina, past the cervix and into the uterus in order to fertilize the egg. It doesn’t matter how much sex a couple has, or what a man’s sperm count is, if the sperm are unable to travel toward the egg in the uterus. Sperm motility is also a fairly difficult thing to improve.

Low sperm motility may have one of a few different causes: a man’s sperm motility may be influenced by genetics or age, overall health, or hormonal balance in the pituitary. A lesser cause might be wearing too restrictive underwear or spending too much time in hot tubs—it seems like an old wives’ tale, but there may be some truth to the idea that a man’s sperm count and motility may be affected by keeping the testicles too warm.

If a man has low sperm motility, there are a few measures the couple can take to improve their chances of conceiving.

The least invasive way is to ensure that the man is eating a balanced diet that is rich in vitamins and minerals. Important vitamins to sperm health include vitamin C, vitamin E, vitamin B12, selenium, and zinc. The best and most absorbable way to get these nutrients is by eating a good diet full of quality fats and proteins, although there may be some benefit to taking supplements if a man is concerned that his diet is inadequate.

The next method to increase chances of conceiving with a man with low sperm motility is intra-utero insemination (IUI). This is a method wherein the sperm are harvested, cleaned, and then “shot” into a woman’s cervix while she is ovulating, in the hopes that one of the sperm will meet the egg.

The most invasive and expensive method is in-vitro insemination. This is where both eggs and sperm are harvested, fertilized in a test tube, and implanted into the woman’s uterus. This method is especially taxing to the woman, as she is required to be injected with hormone shots at specific times and is required to attend many follow-up appointments. Still, this is a step that many couples are willing to take if it increases their chances of conceiving. Low sperm motility can be a challenging condition to overcome, but many couples have found success with these interventions.

  • dee

    any opinions or experience on pregnancy occurring between a healthy woman and a man recently diagnosed by urologist with zero percent sperm motility. Is it possible?

  • Vickie B.

    Unfortunately, unless you get medical intervention with ivf or an iui, the chances of pregnancy are very low.The sperm has to be able to move through your reproductive tract to find the egg in order to fertilize it.

  • Sajeel

    Semen Analysis Report is normal for pregnancy or not?

    Abstinence period 3 day

    Volume 3ml

    PH 8

    Total Sperm 47 million/ ml


    Active 35%

    Sluggish 15%

    Immotile 50

    Morphology Normal

Last modified: June 24, 2014

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