Understanding Endometriosis

Dr Ann Tan has been featured prominently in numerous news articles and media publications to share her professional insight on issues surrounding gynaecology, infertility and obstetrics.

Endometriosis is a painful gynaecological disorder that causes excessive menstrual bleeding and cramps. It can start in the teenage years and has long term consequences for fertility.

What is Endometriosis

Endometriosis refers to an abnormal growth of cells similar to the lining of the womb (called the endometrium). Instead of being isolated in the womb, endometrial cells can appear in other places, such as the ovaries, the outside of the womb, the pelvis, bladder and ureters or bowel. These displaced tissues continue to thicken, break down and bleed with each menstrual cycle, causing problems. For instance, when the condition occurs inside the ovaries, cysts called endometriomas may form. This can prevent the eggs from developing, prevent normal release of eggs and deplete the ovarian reserve. Displaced endometrial tissues can also obstruct the fallopian tube and prevent sperm from reaching the egg. The condition also leads to inflammation, creating scar tissue and adhesions that cause pelvic tissues and organs to stick to each other. These symptoms may make sex painful and undesirable.

Diagnosing Endometriosis

If you suspect that you have endometriosis, you may undergo a series of tests. These include a pelvic exam to palpate (manually feel) for cysts or scars in the ovaries or uterus. Another examination is an ultrasound done externally against your abdomen or inside the vagina for a transvaginal ultrasound. This imaging can be used to identify cysts associated with endometriosis.

The most definitive test for endometriosis is diagnostic laparoscopy, which involves inserting a small tube-like instrument (called a laparoscope) through a tiny incision while you are under general anaesthesia. The laparoscope is equipped with a camera and allows your doctor to view the tissues and take samples for a biopsy. This form of diagnosis can provide information about the location, extent and size of the displaced tissues.

While most women who have endometriosis do not have symptoms, some may experience these problems:

  • Excessive menstrual bleeding
  • Pelvic pain that occurs during or just before menstruation and eases after menstruation
  • Pain felt deep inside the vagina during or after sexual intercourse
  • Pain during bowel movement
Endometriosis Treatment Option

Endometriosis can be treated with medications and/ or endometriosis surgery. Treatment depends on the extent of the problem, your age, whether you wish to get pregnant and balancing the side effects/ complications of drugs or procedures. Medications include painkillers to manage the discomfort. Other women may prefer to take hormone therapy that works by mimicking pregnancy, thus alleviating the symptoms of endometriosis pain. This method is most effective because endometriosis tends to resolve once menstruation ceases.

Those with minimal to moderate endometriosis may opt for laproscopic surgery to surgically remove displaced tissues. For women who wish to become pregnant, it is important to discuss the impact of endometrial surgery on fertility. In cases of mild to moderate endometriosis, removal of endometriosis deposits or endometriotic ovarian cysts can improve the chance of natural conception. In others, in vitro fertilisation (IVF) may be recommended before surgery to avoid affecting fertility due to surgical complications. In severe cases, a hysterectomy combined with the removal of the ovaries is another option, but this is only a last resort - and for women who no longer wish to bear children.

Dr Ann Tan
Specialist Obstetrician & Gynaecologist
MBBS (Singapore), FRCOG (London), M Med (O & G) FAM (Singapore)
Dr Ann Tan Is The First Singaporean To Hold The Diploma Of Fetal Medicine From The Fetal Medicine Foundation.

She Presently Serves On The Women’s Health Advisory Committee At The Health Promotion Board. Dr Ann Tan Was A Public Service Commission Scholar, And Has Won Several Prestigious Awards In Her Field Of Specialization.

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Mount Elizabeth Medical Centre,
Singapore 228510

Tel : +65 6734 8188
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