An intramural fibroid is a noncancerous growth that develops within the muscular wall of the uterus. It is one of the most common types of uterine fibroids and can vary in size from very small to large masses. Some women may not experience symptoms, while others may have heavy menstrual bleeding, pelvic pain, bloating, pressure, or frequent urination. Large intramural fibroids can sometimes affect fertility or pregnancy by changing the shape of the uterus. Doctors usually diagnose these fibroids through ultrasound or MRI scans. For further details, visit the USA Fibroid Centers online.