Fingers and toes ache. What's going on?

The first is rheumatoid arthritis. Because rheumatoid arthritis mainly affects the small joints of the hands and feet, it is prone to a series of symptoms such as joint swelling, pain and morning stiffness. In the early stage, it may appear as a dull pain feeling. The second is systemic disease. The systemic disease especially affects the blood vessels and nerves, causing dull pain in the extremities. Common diseases such as diabetes. Because diabetes patients are often accompanied by peripheral neuritis, it will cause pain caused by inflammation of the nerves at the end of the limbs, which will be manifested as dull pain in the fingers and toes. There are also gout, due to purine metabolism disorders or abnormalities in the body, showing blood uric acid deposited on the joints of the hands and feet or around the joints of the hands and feet, thus showing dull pain in the fingers and toes.