Lugol’s Iodine

Lugol's iodine is used as staining solution to detect intestinal protozoa and helminth ova or larvae. It is rapid contrast dye that is added to direct wet mounts of fecal material to aid in differentiating parasitic cysts from host white blood cells. Lugol's iodine stain the protozoan nuclei and intracytoplasmic organelles brown making them easier to identify.