By the time people were in their 30s, they began to have a lot of trouble with cavities in their teeth and gum disease. People often died of an abcess (an infection) in a tooth. Many women (and some men) got breast cancer, and other types of cancer also killed people. People also complained about kidney stones and bladder stones. In the 1200s AD the Italian Theodoric Borgognoni wrote a book about surgery where he abandoned many old Greek and Islamic traditions and proposed new methods. Borgognoni said that encouraging pus in wounds was wrong, and instead insisted that doctors should clean wounds and sew them closed. He soaked bandages in wine to disinfect them.