MOTILITY
Description
- >50-60 %
Clinical significance
- Motility is the percentage of moving sperm. It is graded based on the speed and direction travelled. At least 50 % should be motile one hour after ejaculation, moving forward in a straight line with good speed
- Healthy sperm motility is defined as a sperm with forward progressions of at least 25 micrometers per second. If a man has poor sperm mobility, it’s called asthenospermia or asthenozoospermia. Sperm motility is categorized as Progressively motile (PR), Locally motile or Not progressively (NP) and Immotile (IM)
- Only the sperms which can travel fast reaches the ovum and fertilise, hence sperm motility is an important factor in semen analysis for infertility
When to get tested
- A semen analysis is done when infertility (pregnancy fails to occur within one year of regular unprotected intercourse) is suspected
Elevated level
Decreased level
- Genetic cause
- Lifestyle factors – Smoking, alcohol consumption , lack of exercise, caffeine etc
- Varicocele
- Abnormal sperm tail – morphological defect
- High viscosity
- High liquefaction time
- Sperm agglutinating antibodies
- Disorder in the male accessory sex gland secretion, which leads to the glands emptying more slowly
Profile
Semen Analysis
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