When does secondary hemorrhage occur?

• A. Secondary hemorrhage - occurs a few days after and is due to infection at the site.
• B. Primary hemorrhage - occurs immediately after a surgical procedure due to cut blood vessels.
• C. Reactionary hemorrhage - occurs a few hours after procedure.
• D. There is no secondary hemorrhage.

Answer: (A)

Secondary hemorrhage refers to bleeding that starts days after a dental procedure. It typically happens because an infection at the wound site disrupts the healing clot and inflames the tissue, causing the clot to break down and renewed bleeding to occur. This timing distinguishes it from primary hemorrhage, which happens immediately during the procedure when blood vessels are cut, and from reactionary hemorrhage, which occurs within hours after the procedure as bleeding continues before the clot has stabilized. The description that it occurs a few days later and is linked to infection at the site matches the concept of secondary hemorrhage. In practice, addressing the infection and ensuring proper wound healing helps prevent or manage this delayed bleeding.