Can uterine fibroids become cancerous?

Generally speaking, whether uterine fibroids undergo malignant transformation needs to be determined based on individual circumstances. If the fibroid is benign, it will not become cancerous. However, if it grows rapidly within a short period and symptoms such as irregular vaginal bleeding appear, there may be a risk of malignancy. If any discomfort occurs, prompt medical attention is recommended. Detailed explanation is as follows:

Uterine fibroids are common benign tumors in the female reproductive system, primarily caused by the proliferation of uterine smooth muscle cells. Most uterine fibroids are benign, grow slowly, and often present with minimal or no symptoms. The probability of malignant transformation of uterine fibroids is generally less than 1%, which is relatively low.

Nevertheless, certain factors may increase the risk of malignancy. If a uterine fibroid grows rapidly in a short time and is accompanied by symptoms such as irregular vaginal bleeding, timely medical evaluation is necessary to rule out the possibility of malignant change. Additionally, in postmenopausal women, the uterus typically gradually shrinks; if the fibroid continues to grow instead of shrinking, prompt medical evaluation is also needed to check for possible malignancy.

In daily life, although the chance of malignant transformation is low, patients with uterine fibroids should not ignore the possibility. Active follow-up is recommended, using regular gynecological examinations and ultrasound evaluations to monitor disease progression and implement timely interventions, thereby reducing the adverse consequences associated with malignant transformation to some extent.