Corpus luteum function assessed by serial serum progesterone measurements after laparoscopic endotherm sterilization.

Estimation of serum progesterone as an indication of luteal insufficiency after endotherm sterilization operation in 14 patients is reported. There is a tendency to shortening of the length of the menstrual cycle. This could either be due to a luteal insufficiency or possibly to a shortening of the follicular phase, or both.