While individuals with robust immune systems can often effectively combat protozoan intestinal parasites, leading to the resolution of associated symptoms like diarrhea within a few weeks, the situation differs significantly for those with weakened immune systems. For immunocompromised individuals, intestinal parasites can lead to life-threatening complications. These may include severe dehydration, malnutrition, dangerous weight loss, and the spread of parasites to other body parts, such as the respiratory tract. Consequently, intestinal parasitic infections should not be underestimated. Prompt consultation with a healthcare professional is crucial upon the manifestation of symptoms.