Patient: Examination and laboratory tests: The local doctor diagnosed congenital stenosing tenosynovitis after palpating the child’s thumb with his hand. Treatment: Frequent massage of the thumb, which straightened and then quickly bent again. History: The child: 13 months old, at 11 months old, he found that his right thumb was bent and could not be straightened, and it was only after checking previous photos and videos that he realized that his thumb was bent when his son was about 9 months old. When he was 12 months old, his left thumb was also bent and not straightened. When he went to the local hospital, the doctor took a look and felt his thumb and diagnosed him with congenital stenosing tenosynovitis. Can you confirm the diagnosis of congenital stenosing tenosynovitis by looking at it and feeling it? 2. Can you tell me in detail the specific massage method for conservative treatment of congenital stenosing tenosynovitis? 3.Do I need hot compresses and medication to assist with the massage? Do I need surgery? Liu Bo, Hand Surgery Department, Beijing Jishuitan Hospital: Hello! 1, clinical examination can confirm the diagnosis, generally do not need other tests, and do not need drug treatment. 2, often help the child, through the gradual passive gentle straightening of the interphalangeal joint of the thumb, so that the thumb is fully extended and straightened, combined with gentle massage of the hard knot at the root of the thumb, so that the child’s thumb is not always fixed in a state of flexion during the daytime. At night, a professional support/finger brace to keep the thumb straight can be worn while the thumb is fully extended (either at the local hospital or for a short period of time, a small piece of wood like an ice cream handle can be fixed to the palm of the finger with adhesive tape. In general, this disorder does not need surgery in the early stage, through regular gentle stretching massage and sleep wearing brace, most children can be cured without leaving sequelae. Hot compresses can also be used as an adjunct to conservative treatment. However, if the child has a persistent and fixed bending of the thumb, and passive stretching does not straighten it at all, and it does not improve for several months, you need to consider an early consultation and make an appointment for surgical release to avoid affecting the development of the thumb joint in the long run. Patient: Thank you very much, Dr. Liu, for answering my question in your busy schedule. Liu Bo, Hand Surgery Department, Beijing Jishuitan Hospital: You are welcome and get well soon!