This was interesting to me also when I posted on it in New Scientist.

As a personal experience, after delivery of my first daughter in the
hospital, I was given an injection (pitocin?) without my permission to make
my uterus contract-even though I was going to breastfeed. The RN hit the
nerve in my buttock.  At my 6 week checkup I complained to my OB/GYN and he
would not take it seriously that I could not feel my buttock at all when I
walked, ran or sat--it was entirely numb all the time.  It stayed numb until
I purposefully got pregnant again when baby #1 was 9 months old and I
continued to breastfeed her.

 

But it was a couple of months into the pregnancy that I was astonished that
I could again feel my buttock-the nerve damage had healed rapidly upon
becoming pregnant.  From what I could research, prolactin is way higher
during pregnancy than lactation.

Judy Ritchie

 

 

This study apparently didn't look at prolactin during lactation, only 

during pregnancy (in mice).  The results are very interesting though 

-- prolactin actually led to remyelination of damaged nerves.

 

http://news.bbc.co.uk/1/hi/health/6376257.stm


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