Sudden bruising can be caused by a variety of reasons, including physiological causes such as trauma, pathological causes including vascular factors, thrombocytopenia, coagulation abnormalities and other factors.
1. Physiological causes: common in trauma such as bumping caused by subcutaneous hemorrhage, manifested as skin bruising, generally time can be relieved.
2. Vascular factors: blood vessel elasticity decreases, brittleness increases, skin capillaries are easy to rupture under the effect of trauma, presenting skin bruises. Common in the elderly arteriosclerosis, and long-term oral steroid hormone patients.
3. Thrombocytopenia: infections, autoimmune diseases such as idiopathic thrombocytopenic purpura, tumors and other causes, can cause thrombocytopenia, causing subcutaneous bleeding, skin bruising suddenly.
4. Abnormal coagulation function: such as cirrhosis, heart disease, excessive oral anticoagulant drugs can cause abnormal coagulation function, causing subcutaneous bleeding, sudden bruising.
Sudden bruising can also be seen in other causes such as hyperfibrinolysis, acute leukemia, aplastic anemia, etc. It is recommended to exclude the physiological causes, and then go to the hospital in a timely manner, can be combined with the blood routine and other tests, under the guidance of the physician to determine the cause of the diagnosis, timely treatment, so as not to delay the condition.