What is a common cause of internal bleeding?

Severe burns can lead to internal bleeding, particularly if they are extensive and cause significant damage to the blood vessels and tissues. When burns are severe enough, they can result in a systemic response, leading to shock and potentially compromising the integrity of blood vessels, thus increasing the risk of internal hemorrhage. This can be due to fluid loss, changes in blood pressure, and the body’s inflammatory response to injury.

While fractures can also lead to internal bleeding, especially in cases of compound fractures where bone shards may pierce blood vessels, the option related to severe burns encompasses a broader range of mechanisms that lead to significant blood loss. Infections and allergic reactions generally do not directly result in internal bleeding in the same way as burns and fractures, which are more closely associated with immediate physical trauma to the body. Therefore, severe burns represent a more widely recognized and common cause of internal bleeding compared to the other choices listed.