what is a truss?
A Honor Society of Nursing (STTI) answered. A hernia truss is a medical belt that can be worn to support a hernia. A truss is also known as a hernia belt. A doctor may prescribe a hernia truss to be worn for a short-period of time before hernia surgery. There are different styles of trusses and many resemble a supportive brief. The truss is worn under the clothing.