pre op liquid diet question

I started my pre op liquid diet friday march 6th my surgery is the 16th. Is the pre op liquid diet suppose to make you have bowel movements? Ive only had diarrhea on the 6th havent had any type of bowel movement since..... 

If you are on all liquids then you can expect the frequency of you BMs to reduce. This is pretty common and will continue even once you are eating solid foods again. As far as consistency, when I was on my pre-op diet, my BM were loose and I was not on all liquids. Post op I alternated between constipated and very loose due to the pain meds and the amount of fluids I was taking in (i believe).

So its normal i only had diarrhea the first day an none since?

it's only been 2 days. My guess is that you emptied yourself out on Friday and you haven't taken in enough to need to have another BM. If  you are concerned you should call your doctor to validate.