Knee squatting up pain walking without pain, the main consideration of strain, meniscus injury, rheumatoid arthritis and so on. 1. Muscle strain: the knee joint is heavily loaded and the joint structure is complex. When squatting, if you exert too much force, improper force, resulting in muscle strain, there will be pain when squatting. 2. Meniscus injury: meniscus is the knee joint fiber plate, with slow impact, so that the bone joint surface more fit and so on. If the meniscus injury tear, can appear knee squatting up pain walking pain symptoms. If you suspect meniscus injury, you should seek further treatment as soon as possible. If left untreated for a long time, it can induce arthritis, aggravate joint symptoms, increase the difficulty of treatment and poor recovery. 3. Rheumatoid arthritis: rheumatoid is an autoimmune disease. Rheumatoid arthritis is an autoimmune disease that affects the knee joints, i.e. rheumatoid arthritis, which can also cause knee pain. Knee pain can occur squatting up pain, walking without pain symptoms. It is recommended that patients seek medical examination to determine the diagnosis and treatment of the cause.