X-rays are an essential tool to help diagnose an issue at a faster pace. X-rays are very supportive for examining and monitoring many medical and surgical conditions, including your pet's bones, lungs, heart, abdomen and other areas of the body. An X-ray can help the doctor spot a fractured bone, detect tumors, help with the diagnosis of heartworm disease, or locate an obstruction or foreign body in your pet's intestine or stomach.