MAR Test (Mixed Antiglobulin Reaction), Anti-Sperm Antibody Testing and other specialised immunological investigations.
Immunological testing evaluates the presence of anti-sperm antibodies (ASA), which can cause sperm agglutination (clumping), reducing sperm motility and function and, consequently, impairing male fertility.
One of the most widely used diagnostic methods is the MAR Test (Mixed Antiglobulin Reaction). It is typically recommended when sperm agglutination is observed during microscopic evaluation as part of a routine semen analysis.
What causes anti-sperm antibodies?
Anti-sperm antibodies may develop as a result of:
- Previous surgery involving the testes or male reproductive tract (including vasectomy or vasectomy reversal).
- Sexually transmitted infections (STIs).
- Infections or inflammation of the male reproductive system.
- Injury or trauma to the testes or reproductive tract.
When is the MAR Test recommended?
The MAR Test is recommended when sperm agglutination (clumping) is observed during a semen analysis, in cases of unexplained male infertility, following testicular injury or surgery, or whenever the presence of anti-sperm antibodies is suspected. Your fertility specialist or andrologist will determine whether this test is appropriate based on your medical history and semen analysis findings.
Can I still father a child if anti-sperm antibodies are detected?
Yes. The presence of anti-sperm antibodies does not necessarily prevent natural conception, although it may reduce the likelihood of fertilisation by affecting sperm motility and function. Depending on the severity of the condition, your fertility specialist may recommend appropriate treatment or assisted reproductive techniques, such as IVF or ICSI, which can help overcome this barrier to conception.