2 tumors on the little thumb and pain may be caused by cuticle hyperplasia and hypertrophy, tendon sheath cysts, foreign body cysts, etc., and may be caused by gout stones or common warts. 1. cuticle hyperplasia hypertrophy: because of friction and extrusion within the fingers, resulting in skin cuticle hyperplasia, the formation of hard knots, the symptoms of pain when pressed, can be reduced by wear and tear pressure, and then external wart warts and corns ointment, etc. for treatment. 2. Tendon sheath cyst: it is due to the prolonged strain of the little thumb joint, which makes the fluid in the joint ooze out from the inside, forming tendon sheath cysts, which will appear hard nodules, pain and other symptoms. It can be treated by local puncture and fluid extraction, and then pressure bandage. If the above treatments are ineffective, tendon sheath cysts can be removed by surgery. 3. Foreign body cyst: the inner side of the little thumb has been traumatized, resulting in foreign body residue, after local bandage, there is a hard knot on the inner side of the finger, which is a little painful when pressed. The foreign body can be removed surgically and the encapsulated tissue can be removed. There may also be gout stones or common warts and other causes, therefore, when the pinky thumb grows 2 tumors and still hurts, you should go to the hospital as soon as possible to clarify the cause of the disease, and cooperate with the doctor for treatment after diagnosis.