-Targeted information on the cause of male infertility through effective testing techniques is at the core of successfully treating it.
-The goal of investigations is to effectively narrow down the cause of male infertility and lay down the groundwork for an informed decision. Experts suggest the careful recording of past medical history and a thorough physical examination (general, abdominal, and genital examination; digital rectal examination in selected cases).
-Scientists recommend diagnostic testing based on infertility causes: pre-testicular infertility that stems from a dysfunction of the pituitary gland or hypothalamus located in the brain; testicular infertility that is directly related to a chromosomal or non-chromosomal abnormality of the testicles; and post-testicular infertility that occurs from a range of other underlying factors.
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Conventional and Advanced Semen Tests:
General semen analysis detects the physical characteristics of semen: volume, appearance, viscosity, and pH.
Microscopic semen examination provides greater detail on sperm parameters: morphology, motility, viability, agglutination, and concentration. However, these tests are less accurate. On the other hand, advanced infertility tests assess precise aspects of sperm function:
- Oxidative stress is the abnormal count of reactive oxygen molecules that form when the body is low on antioxidants. Oxidative stress reduces sperm motility and damages the DNA of the sperm nucleus and mitochondria. The most common technique to measure oxidative stress is chemiluminescence assay, preferred for its high speed and sensitivity. However, it only gives accurate results with pure reagents (substances that measure a reaction)
- Sperm DNA Fragmentation (SDF) refers to damage to sperm DNA from oxidative stress or impaired action of enzymes. SDF increases the risk of delayed conception, embryo development, and miscarriage. SDF is tested using molecular techniques: TUNEL (measures enzyme activity), SCSA (tests DNA splitting), SCD (quantifies DNA dispersion), and SCGE-comet assay (assesses DNA fragments).
- Aneuploidy or abnormal chromosome count affects different stages from pregnancy through childbirth. It leads to a reduced likelihood of pregnancy and abnormal development of the embryo or newborn. The condition is assessed by labeling susceptible chromosomes using a biotechnology technique called fluorescent in situ hybridization (FISH). FISH allows simultaneous analysis of several genes, but it is expensive and not available commercially.
- Nuclear maturity indicates abnormalities in packing of DNA-protein complex into dense chromosomes that damages DNA and reduces chances of successful fertilization due to reduced motility and abnormal morphology. Testing chromatin condensation is a popular way to determine nuclear maturity. An important benefit of the test is its ability to predict IVF outcomes.
- Mitochondrial membrane potential (MMP) is a condition of impaired energy generation that adversely affects capacitation and maturation of sperm, leading to impaired sperm motility. An effective technique to test MMP is laser scanning microscopy.
- Advancements in metabolomics, genomics, and proteomics will help uncover novel biomarkers to diagnose sperm infertility.
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- Imaging approaches include (1) an Ultrasound scan of the scrotum to find the presence of varicocele or structural abnormalities in and around the testicles and (2) transrectal ultrasound to assess blockages of the prostate, seminal vesicles, and ejaculatory ducts.
- Testicular biopsies assess tissue samples to find solutions to abnormal sperm production or blockages in sperm transport.
- Genetic tests confirm if the cause of infertility is inherited or if the characteristics of the Y chromosome are clinically significant. Genetic factors of male infertility are tested by Karyotyping (testing for an extra X chromosome by a blood test), deletions in the Y chromosome, or other genetic mutations (deletion, insertion, or substitution in DNA).
- Hormonal tests ascertain the level of testosterone and other hormones produced by the hypothalamus or pituitary gland to confirm if the cause of infertility is hormone-mediated
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Author Bio
Dr. Prakash Patel
He is a highly respected Infertility and IVF Specialist with an extensive medical career spanning over two decades. As the Director of Shukan Hospital & IVF Centre, he has dedicated his life to helping couples achieve their dreams of parenthood. He is renowned for his expertise in advanced laparoscopic surgeries and has successfully managed numerous complex cases involving recurrent miscarriages and recurrent IVF failures. His proficiency in high-risk pregnancy management and advanced IVF treatments makes him a trusted name in the field of reproductive medicine.
His approach to patient care is deeply compassionate, combining his vast clinical knowledge with a commitment to personalized treatment. He holds prestigious certifications from leading medical institutions in France and Croatia, reflecting his dedication to staying at the forefront of medical advancements. With memberships in notable organizations like FOGSI and ISAR, He is recognized both nationally and internationally for his contributions to gynecology and reproductive health.
Under his leadership, Shukan Hospital & IVF Centre has become one of the premier fertility centers in Gujarat, known for its state-of-the-art facilities and patient-centered care. His outstanding work has earned him several accolades, including the My FM Achiever Award, further cementing his reputation as a leading specialist in his field.
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