I've had 2 colposcopies (about 9 months apart) and the following have occured both times and I have been told by my doctor are completely normal. Basically it is your body trying to heal from a cut (literally) and that part of your body is forming "scabs" and the skin in sloughing off...
- brownish/pink discharge
- large tissue masses (sometimes with a little blood-looking color)
- bright yellow color for the first day or so (this is because of the dye/iodine they use to stain the skin and heal the wound)
- not-so-pleasant odor
In my experience this generally lasts about a week and then slowly goes away. I would guess if I had true blood or this lasted longer than a week I would def. call my GYN. Hope this helps!