It's important to try and keep yourself regular. Straining when going to the toilet can cause haemarroids and anal fissures - both of which can be very very painful!

I have to take matamucil every day, and for the week i was in hospital was having it around 3 times a day until i first went - didn't want to have any bad experiences especially with stitches in.

But seriously, take senna or metamucil or lactalose or agarol or something - just don't let yourself get constipated, because fissures really hurt!