Re: Vasectomy (permanent?)
according to the patient information leaflet on paragard's website:
The fact that the ectopic pregnancy rate is so much higher in women who use IUDs strongly suggests to me that a big part of the way they work is by preventing implanting in the uterus. If they primarily worked by stopping fertilization, then you would expect to see a similar ectopic rate as women on no birth control.
How does ParaGard® work?
Ideas about how ParaGard® works include preventing sperm from reaching the egg, preventing sperm from fertilizing the egg, and preventing the egg from attaching (implanting) in the uterus. ParaGard® does not stop your ovaries from making an egg (ovulating) each month.
Creighton Model FertilityCare Teacher (Practitioner Intern)
Helping others to appreciate their fertility whether trying to avoid or conceive