This does not mean that they are bad, but it is something to think about, especially when considering treatment options. Other sites may belong to proponents of unorthodox therapies. Think about how these may fit into your health agenda. Sites produced by medical schools, universities, and government agencies are good places to start. Look for the date of the last revision.
Medical information changes rapidly.
Old information is less useful and may even be dangerous. Look at the sources used. Be sure to check with a librarian for more information about your subject. The National Library of Medicine indexes the major medical journals and some consumer health publications. The Department of Health and Human Services produces this site for consumers with links to online publications, support groups, and other agencies.