There is no lymph node at the root of the ring finger, and the appearance of lymphoid lumps, the possible clinical causes are tendon sheath cysts, local ischemic aseptic inflammation of tendon ligaments, trauma and so on. 1. Tendon sheath cyst: this condition refers to a soft tissue injury type of disease, its essence is the human body joints, tendons or ligaments attached to the benign swelling, clinical manifestations of the skin protrusion of a smooth, soft, benign lump. The occurrence of this kind of disease is usually related to the degeneration of adjacent tissues and long-term stimulation of the injury site, and in severe cases, it can also cause distal numbness of the affected limbs and joint movement disorders. 2. Ischemic aseptic inflammation of local tendons and ligaments: some people’s fingers are frequently overactive, and the finger joints and the surrounding tendons and ligaments may be damaged and local ischemia may occur, triggering aseptic inflammation, and when the affected area is cooled down, the pain and swelling symptoms will be exacerbated. 3. Trauma: When the finger is hit by external forces, the local tissue is damaged and edema occurs, and there may be localized lumps by observing the appearance of the affected area. If the condition persists or is accompanied by obvious pain, it is recommended to go to the general surgery department or orthopedics department of the hospital for treatment.