• Language
  • 1
  • 1

FREE 15 min phone consultation with a doctor
0800 483 105

Browse

Semen Analysis


A routine semen analysis (SA) is a simple procedure involving our scientists looking at the sperm within a ejaculated semen sample. SA is performed as the first line of investigations in a client's fertility. There are four main parts to the analysis:
Concentration
This refers to the number of sperm within the sample per ml. The number of sperm will inform us if there is a likely male factor contributing to infertility.
Motility
Refers to the movement of sperm. This is categorised into four levels; A - forward progressive, B - slow progressive, C - non-progressive, D - immotile. Normal samples are categorised as having a combined value of 32% or more grade A and B motile sperm. 
Morphology 
This refers to the appearance of individual sperm. Most sperm in the ejaculate will be abnormal in appearance. A normal sample is defined as having 4% or greater normal forms. 
Anti-sperm Antibodies (ASAB)
Occasionally the blood-testis barrier may be breached due to trauma or testicular torsion. If this happens the body recognises sperm as a foreign body and will start to produce antibodies to fight against them. If a sample tests positive for ASAB it can have detrimental effects over sperm function and reduce the chance of natural conception.