Genetic

Y Chromosome Microdeletions:
Small deletions (microdeletions) occurring on the Y chromosome can negatively affect sperm production and sperm motility.

Chromosomal Abnormalities:
Chromosomal disorders such as Klinefelter syndrome (47,XXY) can impair sperm production and function, leading to infertility.

Single-Gene Mutations:
Mutations in the cystic fibrosis gene (CFTR) may affect sperm production and sperm motility within the male reproductive system.

Epigenetic Factors:
Environmental factors and lifestyle changes can influence gene expression. This may affect sperm production and function.

Which Genetic Tests Should Be Performed in Male Infertility?

The following tests may be used to diagnose genetic factors in male infertility:

Chromosomal Analysis (Karyotype Test):
Karyotype analysis examines an individual’s chromosomes to detect numerical and structural chromosomal abnormalities. It is commonly used to diagnose chromosomal disorders such as Klinefelter syndrome.

Y Chromosome Microdeletion Test:
This test is designed to detect small deletions in genes on the Y chromosome that affect sperm production. Microdeletions refer to the absence of specific small regions of the chromosome.

Cystic Fibrosis (CF) Gene Test:
Cystic fibrosis is a genetic disorder that can lead to male reproductive system abnormalities, particularly the absence or underdevelopment of the vas deferens, which carries sperm.

Gene Mutation Tests Related to Spermatogenesis (Sperm DNA Damage Test):
Mutations in genes that regulate the spermatogenesis process can lead to impaired sperm production.

Epigenetic Tests:
These tests evaluate the impact of epigenetic factors on male infertility by analyzing gene expression levels (how active a gene is) and DNA methylation patterns (chemical modifications on DNA).