If a man has normal sperm count and normal sperm motility, approximately how many sperm will be able to get to the fallopian tubes for each ejaculate during a womans ovulation period?
I’ve read different information on this. Some said about 1000 sperm to 5000 sperm But some said only about 50 sperm to 200 sperm. This is actually a very good question, one only a handful of scientist around the world (including myself) has spent our careers studying. Here is the issue– Prior to the 1990’s several good studies were done looking at sperm in the tubes after insemination, by flushing the tubes with salt water and counting the sperm. But back then we hadn’t done the studies to show that sperm actually bind or stick to Fallopian tube cells, and that they stay stuck even if you rinse the tube. These stuck sperm are released in waves over time, so there will always be sperm available to meet the egg. Once sperm are released from the tubal cells they either meet an egg or they die within a few hours as they are “capacitated”. This gives a supply of ready sperm as they wait for the egg for days to a week plus.
