The first thing to do is to identify the cause of the thumb joint bending and thumping, if it is a physiological factor usually does not need to be treated, if it is a disease factor can be physical therapy, medication, surgery and so on. Disease factors that cause thumb joint bending and thumping include stenosing tenosynovitis, osteoarthritis, etc. It is recommended to find out the cause of the disease before treatment, so that treatment can be targeted. 1. Physiological factors: there is a closed joint cavity in the thumb flexion, which is a negative pressure state. When the joint is suddenly pulled or bent, it is easy to break the negative pressure state in the joint cavity, and then thumping sound will appear, which is usually without obvious discomfort and no treatment is needed. 2. Stenosing tenosynovitis: usually related to long-term chronic strain, if the patient accompanied by pain, you can take celecoxib, ibuprofen and other drugs for anti-inflammatory pain, you can also consider the use of support for immobilization to alleviate the pain, conservative treatment is ineffective, you can also carry out tenosynovial incision and release surgery. 3. Osteoarthritis: due to various reasons, cartilage cells are damaged, there will be degenerative changes in cartilage and secondary osteophytes, which can also cause thumping, you can take aminoglucose sulfate to slow down the degeneration of cartilage, take ibuprofen to ease the pain, and you can use the red light therapy, localized hot compresses and other ways to promote blood circulation and ease the discomfort symptoms. Thumb joint bending thumping cause more reasons, if the symptoms continue without relief, it is recommended to go to the hospital in time to find out the cause of the disease, by the doctor targeted treatment, please follow the doctor’s instructions, usually pay attention to hand warmth.