Hello, I'm a medical professional with expertise in vascular anomalies. When it comes to hemangiomas, which are benign tumors composed of blood vessels, the concern about them bursting is not a typical one. However, there are certain conditions under which complications can arise.

Hemangiomas are generally not dangerous and often do not require treatment. They can sometimes shrink and disappear on their own over time. However, in some cases, they can cause problems such as pain, bleeding, or cosmetic issues.
Bleeding can occur if a hemangioma is injured or if it outgrows its blood supply, but this is not the same as the tumor "bursting" in a spontaneous manner.

In very rare cases, a hemangioma could rupture if it's located in an area where it's subject to trauma or pressure. For instance, a hemangioma on the surface of the skin might bleed if it's scratched or bumped. But even in these cases, the term "burst" is not medically accurate; it's more about the risk of bleeding from the lesion.

It's important to monitor any hemangiomas for changes in size, color, or symptoms and to seek medical advice if you have concerns.

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Very large hemangiomas can cause symptoms, especially if they are positioned near other organs. Pain, nausea, or enlargement of the liver can occur. Rarely, larger hemangiomas can rupture, causing severe pain and bleeding into the abdomen that may be severe or even life threatening.read more >>