What defines primary haemorrhage?

Primary haemorrhage is characterized by immediate bleeding that occurs at the time of a surgical or dental procedure, typically during or right after the intervention. In this case, the bleeding is often due to the disruption of blood vessels during the procedure and is usually managed effectively through clotting mechanisms. The body initiates a response to stop the bleeding almost immediately as part of the normal healing process.

The definition highlights the importance of recognizing and addressing bleeding as it occurs during treatment, ensuring that patients do not experience complications that could arise from uncontrolled bleeding. Immediate bleeding that subsequently stops due to clotting is a normal physiological response and distinguishes primary haemorrhage from other types of bleeding that occur later or as a result of different causes.

Other options refer to situations that occur post-procedure or as a result of infections or underlying health issues, marking them as secondary or delayed types of bleeding rather than primary.