Arthritis is the most common chronic disease in the world. The deterioration of soft bones of joint and the inflammaition of connective tissue, causing joint pain and affecting the normal movement of joints can be called arthritis. There are 100 kinds of arthritis. There are many reasons that cause arthritis. In the world there are approximately 355 million arthritis sufferers in the world. China have above 100 million arthritis sufferers. In the U.S., the chance of having arthritis is 1/5. In Asia, the chance of having arthritis is 1/6. Arthritis is not a disease that are unique to old people. It can affect people of any ages.

Guānjiéyán shì quánshìjiè zuì chángjiàn de mànxìng jíbìng. Guānjié de ruǎngǔ tuìhuà huòzhě jiédìzǔzhī fāyán, cóng'ér dǎozhì guānjié téngtòng yǐjí gānrǎo guānjié de zhèngcháng yùndòng jiù jiàozuò guānjiéyán. Guānjiéyán yǒu 100 duō gè zhǒnglèi. Dǎozhì guānjiéyán de yuányīn hěnduō. Quánshìjiè yuē yǒu 3.55 yì guānjiéyán huànzhě. Zhōngguó yǒu 1 yì yǐshàng guānjiéyán huànzhě. Zài Měiguó, huànshàng guānjiéyán de jīhuì shì 1/5. Zài Yàzhōu, huànshàng guānjiéyán de jīhuì shì 1/6. Guānjiéyán bùshì lǎoniánrén dúyǒu de jíbìng. Tā kěyǐ yǐngxiǎng rènhé niánlíng de rén.