<prompt> End product of prgesterone metabolism found in urine :Pregnenolone17-OH PregnenolonePregnanediolPregnanetriol  <response>: Fate of progesterone : Within a few minutes after secretion almost all the progesterone is degraded to other steroids that have no progesteronic effect The major end product of progesterone degradation is pregnanediol. Approximately 10 is excreted in urine in this form. Ref: TEXTBOOK OF MEDICAL PHYSIOLOGY,GUYTON,Pg no:905,12th edition 