<s>[INST] What causes arthritis? [/INST] There are more than 100 different types of arthritis. What causes most types is unknown. Because there are so many different types there are likely to be many different causes.Scientists are currently researching what roles three major factors play in certain types of arthritis. These include the genetic factors you inherit from your parents, what happens to you during your life and how you live. The importance of these factors varies for every type of arthritis. Source: UW Medicine. Link: https://orthop.washington.edu/patient-care/articles/arthritis/frequently-asked-questions-about-arthritis.html. Field: Rheumatology. Disease: Arthritis </s>