The common clinical causes of swollen hands in dry work are mainly the following: a. Patients work for a longer time or with greater strength, which can cause damage to the soft tissues of the hands and cause obvious swelling symptoms. The swelling of the hand can be relieved by adequate rest, local icing to reduce tissue exudation, and oral administration of drugs such as swelling and pain, blood circulation and stasis pills. Secondly, patients with upper limb venous thrombosis can work for a long time, which will cause the blood vessels in the hand to stagnate and block the return of a large amount of blood, causing the obvious swelling symptoms in the hand. Patients need to take oral dabigatranate and haemosiderin capsules under the premise of sufficient rest to improve blood circulation in the hands, promote blood return and dissolution of blood clots, thus reducing the symptoms of swelling and pain in the hands.