There are several possible causes of finger joint pain upon waking up: first, rheumatism and rheumatoid diseases, rheumatism and rheumatoid diseases can have the symptoms of pain and stiffness in the finger joints in the morning, often involving multiple joints, and in serious cases, there will be deformities of the joints, and early blood tests as well as finger x-ray and CT examinations should be performed for early diagnosis and early treatment; second, tenosynovitis, if for If a finger joint pain, often caused by tenosynovitis, then there can be joint pain, serious swelling, popping and interlocking symptoms, there will be limited joint movement, then early specialist examination and examination for early treatment; third, ankylosing spondylitis, ankylosing spondylitis can also involve the finger joints when serious, there is pain in the joint after waking up, can be accompanied by The pain in the joints after waking up can be accompanied by stiffness, which can improve after a while of activity, and then blood tests and hand x-rays should be performed for early diagnosis and treatment.