The most common form of IBD in dogs is the lymphocytic/plasmacytic form (LPIBD). This describes the type of cells that pathologists see when they examine biopsies from the pet's intestine. Some of these cells are always there, but it is abnormal when they are found in large numbers. Since we rarely find anything present that should have drawn these cells to the area, we currently consider it similar to a false fire alarm. IBR is a common disease in humans, and physicians are just as stumped. When we find better treatments for pets, it will come through research designed to help humans with similar problems.