What triggers reactionary hemorrhage?

Reactionary hemorrhage is primarily caused by a loss of clot or a rise in blood pressure following a surgical procedure such as a tooth extraction. When a clot forms at the site of an extraction, it is essential for hemostasis, as it helps to stop the bleeding. If this clot is dislodged for any reason—such as an increase in blood pressure from physical activity, stress, or other factors—the blood vessel can reopen and lead to hemorrhage.

The process can also be influenced by rises in blood pressure, which can happen due to various factors, including excitement or anxiety. The pressure can cause a clot to be pushed out or can stress the healing tissues around the blood vessels, contributing to further bleeding. Therefore, understanding the mechanisms behind how clots are maintained and the factors that can disrupt this process is crucial for preventing reactionary hemorrhage after dental procedures.