Rheumatoid knee osteoarthritis and primary gouty knee osteoarthritis among the knee disorders may be genetically related. There are many types of knee disorders, and the causes of osteoarthritis of the knee, gouty knee arthritis, and rheumatoid knee arthritis are unclear, in addition to clear causes such as trauma and infection. Among them, rheumatoid knee osteoarthritis and primary gouty knee osteoarthritis may be genetically related. Rheumatoid knee osteoarthritis may be genetically related, or it may be related to infections, sex hormones, and so on. Primary gouty knee arthritis, which is caused by primary hyperuricemia, may also be genetically related. When symptoms such as knee pain occur, you should go to a regular hospital in time.