The appearance of hand swelling may be a precursor to heart failure, rheumatoid arthritis, cervical disc herniation and other diseases. 1. Heart failure: the heart is an important pump in the blood circulation, the function is very important, if there is a cardiac insufficiency, failure, it will make the venous blood back to the heart is impeded, if it lasts too long, it will cause the venous pressure to rise, resulting in the venous blood in the tissue interstitial space is constantly deposition, the performance of the hand bloating situation. 2. Rheumatoid arthritis: when the disease strikes, it will be manifested as swelling and pain in the fingers or joints, and if the situation is more serious, redness, swelling or deformation of the joints may occur. 3. Herniated cervical disc: Herniated cervical disc will involve the upper limbs and the ends of the upper limbs, resulting in limited movement of the arms and fingers, which may induce swelling of the fingers. If there is swelling of the hands, it is recommended to consult a doctor in time to clarify the cause of the disease and carry out targeted treatment.