Semen analysis is the first step to identify male factor infertility. Standardized methods of semen analysis are available allowing accurate assessment of sperm quality and comparison amongst laboratories. Population based references ranges are available for standard semen and sperm parameters. Sperm numbers and morphology are associated with time to natural pregnancy whereas sperm motility may be less predictive. Routine semen analysis does not measure the fertilizing potential of spermatozoa and the complex changes that occur in the female reproductive tract before fertilization.
What Is a Normal Sperm Count?
Limitations of Semen Analysis as a Test of Male Fertility and Anticipated Needs from Newer Tests
A semen analysis plural: semen analyses , also called " seminogram "  evaluates certain characteristics of a male's semen and the sperm contained therein. It is done to help evaluate male fertility , whether for those seeking pregnancy or verifying the success of vasectomy. Depending on the measurement method, just a few characteristics may be evaluated such as with a home kit or many characteristics may be evaluated generally by a diagnostic laboratory. Collection techniques and precise measurement method may influence results. The most common reasons for laboratory semen analysis in humans are as part of a couple's infertility investigation and after a vasectomy to verify that the procedure was successful. It is also commonly used for testing human donors for sperm donation , and for animals semen analysis is commonly used in stud farming and farm animal breeding.
Sperm morphology, in the context of a semen analysis, refers to the size and shape of the sperm in a given semen sample. Otherwise, you could have fertility problems because of abnormal sperm morphology. A normal sperm has an oval head about micrometers long and 2.
An abnormal sperm count may also indicate an underlying health condition. A normal sperm count ranges from 15 million sperm to more than million sperm per milliliter mL of semen. Anything less than 15 million sperm per milliliter, or 39 million sperm per ejaculate, is considered low.