The size of uterine fibroids is one of the indicators we consider for whether treatment and surgery are necessary. It is generally believed that surgery is indicated when the diameter of a fibroid exceeds 6cm, or when the entire uterus is larger than the size it would be at ten weeks of pregnancy.

However, in reality, the size of a uterine fibroid is not an absolute indicator for surgery. This means that even if the fibroid exceeds 6cm, or the entire uterus reaches around ten weeks in size, it doesn’t necessarily require surgery. At this point, other factors are usually also considered, such as whether there are symptoms, whether the large fibroids cause heavy menstruation and anemia, whether there are compression symptoms, the radiological appearance of the fibroids, whether they resemble malignant conditions, whether the fibroids are rapidly growing, and whether the fibroids are located in special areas like the cervix, the hip ligament, or submucosal. Thus, the size of the uterine fibroids is just one aspect we consider for treatment or surgery; the presence of symptoms and whether the fibroids are malignant, among others, are actually more important.