 Parasites are organisms that live off other living creatures and cause various diseases. These diseases can affect multiple organs and systems, including the digestive system, skin, and nervous system. Common roots of transmission include ingestion, contact with infected animals, and sexual contact. Symptoms of these diseases vary depending on the type of parasite, but often include fever, fatigue, weight loss, abdominal pain, diarrhea, and skin rashes. Dentists should be aware of the potential presence of parasites in the oral cavity, as they can cause lesions and ulcers. In this paper, the authors discuss several types of parasites that can be found in the oral cavity, such as leishmania, toxoplasma, entomibia gingivalis, trichomonas tenax, gondolinema polkrum, and ancelostoma. Each of these parasites has unique characteristics and symptoms, which can be identified by a dentist. This article was authored by Natalia Puzio, Maria Secura, Alices Srebrenna, and others. We are article.tv, links in the description below.