Ascariasis is a common intestinal parasitic infection caused by the roundworm Ascaris lumbricoides. It is prevalent in areas with poor sanitation and hygiene practices. The life cycle of Ascaris involves the ingestion of embryonated eggs from contaminated food, water, or soil. Once ingested, the larvae hatch in the small intestine, penetrate the intestinal wall, and migrate through the bloodstream to the lungs. After maturing in the lungs, the larvae are coughed up and swallowed, completing their development in the small intestine. Clinical manifestations of ascariasis include abdominal pain, nausea, vomiting, and in severe cases, intestinal obstruction. The infection is diagnosed through the identification of characteristic eggs in stool samples. Treatment involves anthelmintic medications like albendazole or mebendazole, which effectively eliminate the parasites. Prevention strategies focus on improving sanitation, promoting hand hygiene, and educating communities about the risks associated with contaminated environments.