Figure 4: Simultaneous observation of morphology and vacuoles in teratoasthenozoospermia and oligo-terato-asthenozoospermia specimens: comparison of ejaculate and swim-up fraction Sperm concentration, sperm motility, and normal morphology: (A): 5400×104/mL, 6.2% and 2.6%; (B): 420×104/mL, 44% and 4.6%; (C): 660×104/mL, 1.8% and 0.8%.