Fibroids are noncancerous growths or tumors that mostly develop in the muscle of the uterus. They can also grow on the outer walls of the uterus. The size of a fibroid can vary from the size of a pea to the size of a watermelon. The number and size also varies from individual to individual. It is also called myomas.


There are four types of fibroids. They are listed below.

  • Intramural Fibroid: This type of fibroid develops in the muscular wall of the uterus. It is the most common form of fibroid.
  • Subserosal Fibroid: These can extend beyond the wall of the womb and can grow to a large size.
  • Submucosal Fibroid: These develop in the muscle layer of the uterus. They are less common that the previous two.
  • Cervical Fibroid: They develop in the cervical region of the womb.


Fibroids are usually diagnosed during a routine abdominal or pelvic exam. The doctor may feel an unusual abdominal or pelvic mass. However there are more ways to diagnose and even determine the size and number of this benign tumor(s).

They include the following;

  • Ultrasound (sonogram)
  • Hysteroscopy
  • Laparoscopy
  • Magnetic Resonance Imaging (MRI)
  • Saline Sonohysterogram (Hysterosalpingogram)


It is not certain what causes fibroids to develop but there are some factors that influence their formation.


As women mature they are increasingly at risk of developing fibroid. The increase in the production of estrogen and progesterone (hormones produced by the ovaries) may influence the growth of the tumor.

Women with a family medical history of recurrent fibroids in relatives have a high risk of developing fibroids.

Women with high body weight are also at risk.


Symptoms will depend on location, size and number of tumors. Smaller tumors may not show any symptoms and may shrink during menopause while large tumors may cause excessive bleeding and difficulty conceiving.

Symptoms may include;

  • Abdominal mass
  • Excessive/prolonged menstrual bleeding
  • Pain in abdomen
  • Lower back pain
  • Increased urination
  • Constipation
  • Pain during sexual intercourse
  • Difficulty getting pregnant.


For fibroids without any outward display of symptoms, ‘watchful waiting’ with frequent ultrasounds in between may be prescribed as fibroids tend to shrink as she reaches menopause. However, with symptomatic fibroids the following treatment options are available;

Medical treatment.

  • Gonadotropin-Releasing Hormone agonists (GnRHa): This drug shrinks fibroids by inducing menopause like symptoms. It stops the menstrual cycle without affecting treatment.
  • Gonadotropin-Releasing Hormone antagonists (GnRH): This stops the ovaries from producing estrogen and progesterone.

Other medications are available but ineffective against larger fibroids. They include;

  • Birth-Control Pills: This help regulate the ovulation cycle and may help with bleeding during periods
  • Nonsteroidal Anti-inflammatory Drugs: such as Ibuprofen will help with the pain associated with fibroids. It does not stop the bleeding.

Very large or severe fibroids may be nonresponsive to medication. In such instances, surgeries are the next treatment option. The speed of recovery and fertility is also considered when choosing the type of surgery. The following procedures are available;

  • Myomectomy: This is one of the most common form of surgical treatment option for fibroids. It is the removal of fibroids(s) from the muscular walls of the womb. Open surgery and laparoscopy are options here.
  • Hysterectomy: This is the partial or total removal of the womb. This is only considered in extreme cases.
  • Endometrial Ablation: This is the removal of the inner lining of the womb. Only available for fibroids in specific locations as another option to hysterectomy.

Other procedures include:

  • Uterine Artery Embolization (UAE)
  • MRI-guided focused ultrasound surgery
  • MRI-guided percutaneous laser ablation.

Keeping weight down and eating healthy may help but it is not a proven treatment option.


  • 65% – 80% of women will develop fibroid at the age of 50.
  • 30% – 40% will be symptomatic.
  • Less than 0.5% of fibroids turn to cancer.
  • Mortality rate due to fibroid is almost insignificant in recent years.



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