Stool is one of the most difficult laboratory samples to be handled especially for recovery of intestinal parasites. The preservation of stool parasites faces a lot of difficulties in laboratory and the use of powerful preservatives leads to a better result. This study describes the efficacy of three stool preservatives for the stool parasites and they are 10% formalin, low viscosity polyvinyl alcohol and sodium acetate acetic acid formalin and compare them using fresh stool which were positive for intestinal parasites. Stool samples positive for an intestinal parasite by microscopy were taken and the outcome was compared after preserving the sample with each of the 3 preservatives and observed after 1 month period in relation to their morphology and staining properties. | Comparison of the use of three different stool preservatives on the morphology of intestinal parasites