Bacteria or fungi further damage the heart valves, muscles and linings. Congenital heart disease. Injections of contaminated materials into the bloodstream, such as with self-administered intravenous drugs. Excess alcohol consumption. Use of immunosuppressive drugs.
Artificial heart valves.
These include dental work, childbirth and surgery of the urinary or gastrointestinal tract. Consult your doctor before becoming pregnant. Don't use illicit drugs like heroin or cocaine. Your own observation of symptoms. Laboratory blood counts and blood cultures.