Abstract Objectives: To find out the relation of serum progesterone level between patients in-labor and pregnant patients not in-labor.Methods: This was an analytic cross-sectional study, comparing serum progesterone level between in-labor gravida and not in-labor gravida. Subjects were in-labor gravida (n=21) and not in-labor gravida (n=24) admitted to Sanglah Hospital from April to August 201…