The word "fistulate" refers to the formation of a passageway or channel between an organ or tissue and the skin. Some synonyms for "fistulate" include "fistulize," "fistulise," and "fistulization." However, there are also other terms that can be used to describe a fistula, such as "sinus tract," "abscess cavity," or "communication channel." These terms also refer to the abnormal passage that forms between two different areas of the body. Fistulas can form for a variety of reasons and may require medical attention to resolve. Proper treatment may involve surgical intervention or the use of antibiotics to treat underlying infections.