Hardware disease in livestock is traumatic puncture of the gastrointestinal tract with resultant spread of infection, caused by ingestion of a sharp, hard object, usually a piece of hardware (hence the name). These pieces of metal settle in the reticulum and can irritate or penetrate the lining.[1] It is most common in dairy cattle, but is occasionally seen in beef cattle. It is very rarely reported in any other ruminants.[2] It can be difficult to conclusively diagnose, but can be prevented by the oral administration of a magnet around the time that the animal reaches the age of one year.[2] Depending on where the infection spreads, the medical names for it include bovine traumatic reticuloperitonitis and bovine traumatic reticulopericarditis.