Figure 1: Chromosome Y microdeletion and AZFc partial deletion frequency in azoospermic, oligozoospermic, and normozoospermic patients. AZFbc and AZFc microdeletion was observed in azoospermic and severe oligozoospermic men, b1/b3 deletion was detected in only azoospermic males, gr/gr deletion was significantly higher in oligozoospermic males than in the other two groups, while b2/b3 deletion frequency was similar in the three groups