Although uncommon, uterine fibroids can sometimes rupture, especially if they outgrow their blood supply or undergo degeneration. A burst fibroid may cause sudden and severe pelvic or abdominal pain, fever, dizziness, nausea, and abnormal bleeding. In rare cases, a ruptured fibroid can lead to internal bleeding and require emergency medical treatment. Because the symptoms can resemble other serious conditions, it is important to seek prompt medical attention if you experience intense pain or unusual bleeding. For further details, visit the USA Fibroid Centers online.