Untreated parasitic worm infections can lead to severe complications. In cases of heavy infestation, symptoms may includeintestinal blockage, which can cause severe abdominal pain, vomiting, and even perforation of the intestinal wall, leading to internal bleeding or appendicitis. Children are particularly vulnerable, as these infections can result ingrowth retardationand malnutrition due to poor nutrient absorption. Additionally, untreated infections can causeanemiafrom blood loss and may lead to more serious conditions such asportal hypertensionandneurological issues. For treatment, medications like nizonide 500, which contains nitazoxanide, are effective against various parasitic infections. This medication works by inhibiting parasite growth and should be taken as prescribed to ensure complete eradication of the infection.