<prompt> Fructose absence in semen analysis suggests:Bilateral vas deferens obstructionSeminal vesicles agenesisTesticular failureProstatic urethral obstruction  <response>: Abnormalities Low ejaculate volume may indicate: Retrograde ejaculation Ejaculatory duct obstruction Incomplete collection Androgen deficiency Azoospermia: Testicular failure Obstruction of vas deferens Absence of fructose: Seminal vesicle agenesis or obstruction 