When it comes to arthritis, many people equate it with rheumatic diseases. In fact, there are several types of arthritis, including infectious and degenerative, and the two most common are osteoarthritis and rheumatoid arthritis. The proportion of rheumatoid arthritis in outpatient clinics is very small, while nearly 80% belong to cartilage arthritis, also known as degenerative joint disease. In fact, chondroarthritis is not terrible, and most of it can be cured by taking medication. According to clinical data, the prevalence of osteoarthritis in people under the age of 45 is 2%, while the prevalence in people over 65 is as high as 68%. Normal joints can last until the age of 60 or 70. All people suffer from varying degrees of osteoarthritis in old age, but this arthritis is not terrible, it is just a normal degenerative phenomenon. It gives you a signal that it hurts, so you need to see a doctor when it hurts. The initial symptom of arthritis is pain, then stiffness and limited movement. The worst that can happen is that the joint becomes unusable. As an example, a woman in front of the hospital had been selling fruit for more than 10 years and usually rode a tricycle, which was so loaded that she couldn’t go up the stairs. Finally she came to see a doctor and after 3 months of treatment she started to sell fruits by bike again, so arthritis can be cured. Normal joints can be straightened and bent, so once you feel pain, you should pay attention to it. Degenerative arthritis occurs mainly in two types of people: those who carry a lot of weight and often climb high and low; and professional athletes who lift weights, play soccer, badminton and other sports. There is one type of exercise that I do not advocate, and that is mountain climbing. Climbing should be done in moderation, both the elderly and young people should not climb too often.