Fibroid degeneration happens when a uterine fibroid loses its blood supply and begins to break down. This can cause sudden or severe pelvic pain, abdominal pressure, cramping, and sometimes fever or nausea. The discomfort may last for several days or longer, depending on the fibroid and the type of degeneration. Although symptoms can improve over time, severe or persistent pain should be evaluated by a healthcare professional. Understanding fibroid degeneration can help you recognize changes in your symptoms and seek appropriate care. USA Fibroid Centers offers information and treatment options for people experiencing fibroid-related symptoms.