Understanding which size of fibroid is dangerous can help you take proactive steps to ensure that you receive appropriate medical care when you need it the most. Fibroids can significantly impact your health by causing symptoms such as heavy menstrual bleeding, pelvic pain, and reproductive issues, leading to potential complications. Understanding the dangers associated with fibroid size is crucial for making apt decisions about treatment options and managing symptoms effectively. So without ... Which size of fibroid is dangerous ? Danger depends on size , symptoms, and location. Learn when to seek help for large or problematic fibroids . Discover which size of fibroid is considered dangerous , how they affect health, and what symptoms to watch for. Understand fibroids and when to seek help. When Does the Size of a Fibroid Become Dangerous ? A fibroid is generally considered more likely to be dangerous when it grows larger than 5 cm. At this size , it can start to cause problems that affect your daily life and overall health. However, danger isn’t just about size . Even a smaller fibroid can be risky if it is in a problematic location. For example, a fibroid growing inside the uterine cavity (a submucosal fibroid ) can cause heavy bleeding and fertility problems, even if it is ...