The official medical name for the tendinitis of the wrist is “radial stenosis tenosynovitis”, which is known as De Quervain’s Disease, and is often caused by repetitive or continuous exertion, which causes friction, strain, and increased pressure on the tendon c tendon sheath, leading to sterile inflammation. The reason for this is that the tendonitis caused by holding the child is very common, the English translation abroad is “mother’s hand”, the domestic situation is generally “grandma’s hand”. 2, hormonal changes are also the cause, often occurring before and after pregnancy, before and after childbirth and breastfeeding. What is the manifestation of tenosynovitis in the wrist? Pain occurs when the wrist is strained or deflected toward the little finger, sometimes very suddenly and violently. Swelling and warmth may occur at the base of the thumb of the wrist, and a bulge may be palpated and painful when pressed. Clinical examination: Finkelstein’s test: If the thumb is held in the palm of the hand and the wrist is deflected downward (on the little finger side), there will be significant pain, then the diagnosis of tenosynovitis is usually made. （What should I do if I have tenosynovitis of the wrist? Hot compresses, hand soaks, and topical analgesic creams can relieve pain and reduce inflammation, but most importantly, the wrist should be well rested. It is useful to wear a wrist brace to help reduce the adverse stress on the wrist and help the inflammation subside. In the short term it is best to do less or no housework and carry the child, at least with less force on the side of the wrist that hurts. Carrying children is also a skill, that is, the other hand is the main, the painful side is replaced by the elbow force, so that the wrist and fingers are free, keep a relaxed state, do not exert force. Many people can get well through conservative treatment, so don’t worry too much about it. If you still can’t rest your hand and wrist, sometimes the pain will last for a long time, affecting your hand and work, and in severe cases, surgery will be needed for treatment.