Gum disease, also known as periodontal disease, occurs when the gum tissue becomes infected by bacteria in plaque. Early symptoms include red, swollen or bleeding gums. Left untreated, it can advance and cause the gums to separate from the teeth, forming pockets that become infected. This advanced gum disease can destroy the bone and tissues that support the teeth, potentially leading to tooth loss. It may also increase risks for health issues like heart disease and diabetes. Treatment options range from nonsurgical deep cleaning to treat early stages, to laser therapy and surgery for advanced gum disease. Regular dental checkups are important for preventing and treating gum disease.