Motility of sperm refers to its ability to swim in a forward direction. Normal sperm motility plays a crucial role in men's reproductive health since the sperm have to be able to reach the egg in the uterus in order to fertilise it. If a sperm is unable to move properly, then getting pregnant and conceiving naturally can become an issue. With that being said, it is important to know that not all the sperm need to be motile or be able to move in the right direction. Motility is evaluated with the help of a semen analysis tells:. Grade C and grade D are considered poor which means that the testicles are producing low-quality sperms and not functioning normally.
Understanding Semen Analysis | Stony Brook Medicine
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Male infertility is often caused by low sperm count, abnormal sperm movement, or weak sperm. If you and your partner are trying to conceive, the results of this test can help you figure out the next steps you may want to take. You may also need this test if you've recently had a vasectomy. A vasectomy prevents pregnancy by keeping sperm separate from semen during ejaculation.
Semen analysis as an integral part of infertility investigations is taken as a surrogate measure for male fecundity in clinical andrology, male fertility, and pregnancy risk assessments. Clearly, laboratory seminology is still very much in its infancy. In as much as the creation of a conventional semen profile will always represent the foundations of male fertility evaluation, the 5th edition of the World Health Organization WHO manual is a definitive statement on how such assessments should be carried out and how the quality should be controlled. A major advance in this new edition of the WHO manual, resolving the most salient critique of previous editions, is the development of the first well-defined reference ranges for semen analysis based on the analysis of over recent fathers. The methodology used in the assessment of the usual variables in semen analysis is described, as are many of the less common, but very valuable, sperm function tests.