<s>[INST] What is arthritis? [/INST] Arthritis is a general term for conditions that affect the joints or tissues around the joint. There are more than 100 types of arthritis.Most types of arthritis cause pain and stiffness in and around the affected joint or joints. Some types of arthritis, such as rheumatoid arthritis, also affect the immune system and some internal organs of the body. Source: CDCP GOV. Link: https://www.cdc.gov/arthritis/basics/faqs.htm. Field: Rheumatology. Disease: Arthritis </s>