thank you for the inquiry.
the most common reason is due to osteo arthritis
it is ideal to under go ayurveda panchakarma
therapies for a period of two to three weeks.
If you can plan a trip to kerala for ayurveda, I can give you more details like the price and package etc.
There are good medicines like cap.zeotone and Tab.zeotone for the knee degeneration and arthritis.
where are you located?
please contact me at:9747480903