hi ! generally after caesarian external stitches if any will be removed after a week but internal stitches they dilute themselves and it takes time for them to dilute may be from 6-9weeks, that causes pain and discomfort on bending or any exertion. so you need to avoid lifting heavy weights till 6 mnths. in the mean while if the pain is very much trouble some you can opt for homoeopathy treatment rather going for pain killers for long time. through homoeopathy post operative pains can be reduced completely very easily. before going for any treatment you need to observe for any discharges like pus or watery discharges from operated site, i.e at external stitches or any fever and all and report to the doctor. if there are no such signs, pain can be easily reduced in a week or 2 at the most.