What is a common cause of secondary hemorrhage?

Secondary hemorrhage often occurs as a complication following surgery, particularly in the context of dental procedures. One of the primary causes of this is infection at the surgical site. When an infection develops, it can lead to tissue breakdown and a reaction from the body’s immune system. This may interfere with clot formation and healing processes, eventually resulting in bleeding.

Infections can create an inflammatory response which disrupts the fragile balance necessary for the stabilization of healing tissues, making it difficult for clots to remain intact. The presence of bacteria and immune cells at the site can also erode blood vessels, further increasing the risk of bleeding.

In contrast, while allergic reactions to anesthesia may pose serious risks during a procedure, they are less likely to be a direct cause of secondary hemorrhage. Excessive physical activity can also potentially lead to issues post-surgery, but it is not as direct a cause of secondary bleeding as infection. Lastly, improper post-surgical care can contribute to complications, including secondary hemorrhage, but it primarily sets the stage for infections and other complications to trigger this condition.