[Demonstration of rectal myiasis in humans].

During a period of over 10 years 4 cases (2 women; 2 men) of rectal myiasis were observed after periods of warm weather. The patients had interpreted myiasis as a symptom of infestation with worms. In 3 cases maggots of Fannia canicularis (Linnaeus, 1761) and in one case maggots of Muscina stabulans (Fallén, 1816) could be found. The patients had only minor complaints.