Zhang Li, a young mother, gave birth to a baby in October last year, and the baby grew cuter and cuter, so the mother loved it and held the child in her arms. With the increasing weight of the child, Zhang Li gradually found that her hands were sore and weak, with pain on the thumb side of the wrist, local swelling and hand movement affected. So she came to the hospital for medical attention. After examination, Zhang Li had tenosynovitis, that is, bilateral radial stenosis tendinitis. The tendon sheath is the protective membrane of the tendon, and there are two tendons that control the thumb on both sides of the radius in the hand. If the tendon rubs excessively in the synovial canal for a long time, an inflammatory injury to the tendon and tendon sheath can occur, causing swelling, called tenosynovitis. New mothers are most prone to tendonitis because of their lack of experience in childcare, as they have to hold their children and also help them bathe and change diapers, overusing their hands and having an incorrect posture. Not only young moms moms, but also grandparents who help with the children are also prone to this disease. Some other occupations, such as shooting athletes, operating machines for long periods of time, typing, chefs, and restaurant waiters are all at high risk. Electronic products are also the “behind the scenes” of tenosynovitis, the common application of smart phones, become the main position of young people in addition to the keyboard, thumb activities. The hand or finger fixed in a certain position to do repeated, excessive activity, so that the tendon and tendon sheath frequent friction, is the main cause of tendinitis. Prevention methods: when holding a child do not keep a posture for a long time, it is best to change hands often, usually do more massage, when the fingers wrist pain, swelling, to brake, while early treatment to the hospital. Teenagers are growing and developing, avoid using the mouse or touching the screen for a long time. Treatment of tendonitis should be carried out as early as possible. Minor tendonitis can be relieved by hot compresses, massage, and topical medications; severe ones can be treated with local nerve blocks or acupuncture; if the disease is long and recurrent, surgery may be required. For breastfeeding women and adolescents, shockwave therapy with precise effects and few side effects is particularly appropriate.