Hair-thread tourniquet syndrome (HTTS) is an uncommon but preventable disorder in which a body appendage becomes constricted after becoming firmly wrapped by a hair or substance that resembles hair. The genitalia, fingers, and toes are typically affected. Prompt diagnosis and treatment by complete removal of the constricting agent are crucial for the preservation of the affected appendage. This narrative review article revisits HTTS in the context of the recent literature with the aim of raising healthcare professionals' awareness of this surgical emergency so that the condition can be prevented, correctly diagnosed, and treated early.