An adult man is presented with a case of epistaxis due to leech (Limnatis linotica) intranasal parasitation. The geographical area where infection was performed is in the province of Teruel, northwest Spain. The only presented symptom was an incoercible nasal haemorrhage with low flow which didn't cease by anterior tamponade. 7 days after the process began he was heeded at the Emergency Service, Alcañiz Hospital, where the exam of left nasal fossa showed the presence of a olive-green long mass, very mobile. The treatment consisted on the leech extraction with a dissection forceps. Haemorrhage stopped immediately after the mild intervention and, reexamination the nasal fossa 15 days after, it was no wound or infectious complication observed. The patient was infested when drinking water from a fountain placed in rural area.