Swimming pools that are well-chlorinated and maintained are safe. There is some risk of plague. Hepatitis E is prevalent in western China. Hepatitis B is highly endemic. Precautions should be taken against Japanese encephalitis.
Medical costs are low.
Many medicines common to Western countries are unavailable in China. The hospital system is excellent. There are many traditional forms of medicine still used in China, the most notable being acupuncture. Medical insurance is advised.