Bruising at the finger joints usually does not appear on its own. Bruising at the finger joints may be caused by soft tissue contusion, hemophilia, rheumatoid arthritis, and blood diseases.
1. Soft tissue contusion: When a foreign object strikes or collides with the joints of the fingers, the blood penetrates into the subcutaneous tissues, which may cause bruising of the finger joints, accompanied by pain and swelling and other uncomfortable symptoms.
2. Hemophilia: Hemophilia is a disease caused by a qualitative or quantitative abnormality of coagulation factor VIII. Patients may experience easy bleeding in the subcutaneous tissues and the mouth, which may be manifested as bruising of the knuckles.
3. Rheumatoid arthritis: Rheumatoid arthritis belongs to synovial disease, mainly manifested as finger joint pain, muscle pain, pain is wandering, etc..
4. Blood diseases: including aplastic anemia, acute leukemia, etc., can cause thrombocytopenia and increase the risk of bleeding.
When the patient appears at the finger joints bruises, should consult the regular hospital examination, clear diagnosis under the guidance of physicians to receive treatment.