To provide a composition for an indicator which is used for detecting pressure points on denture, which easily adheres to an oral mucosa and remains, has proper viscosity in an oral, has a property to be properly spread between an oral mucosa surface and a denture base, and easily specifies an affected part. A composition for an indicator which is used for detecting pressure points on denture includes:A) a fatty acid ester having a melting point of 30 to 50°C；B) a water-soluble high polymer； andC) a metal oxide.More preferably, a composition for the indicator which is used for detecting pressure points on denture includes:A) 40 to 95% by weight of the fatty acid ester having a melting point of 30 to 50°C；B) 1 to 59% by weight of the water-soluble high polymer； andC) 0.1 to 50% by weight of the metal oxide.
