Quick answer. Endometriosis is when tissue similar to the womb lining grows outside the uterus, causing severe period pain, chronic pelvic pain, pain during sex and sometimes difficulty conceiving. It affects about 1 in 10 women of reproductive age yet is often diagnosed years late. Doctors assess it through history, examination and ultrasound or MRI, while keyhole surgery (laparoscopy) is the only way to confirm it definitively. Treatment is tailored to your symptoms and fertility goals and includes pain relief, hormonal therapy and laparoscopic surgery (which is MediSave-claimable). Don’t normalise severe period pain that disrupts your life – see a GP or gynaecologist.
Period pain that stops you working, studying or sleeping is not something you simply have to put up with. For many women in Singapore, severe or worsening menstrual pain is a sign of endometriosis – a common but frequently under-diagnosed condition. This guide explains what endometriosis is, the symptoms to watch for, how it is diagnosed and the treatment options available locally, so you can have an informed conversation with a doctor.
At a glance
| Treatment | What it involves | Notes |
|---|---|---|
| Pain relief (NSAIDs / analgesics) | NSAIDs (e.g. mefenamic acid) and paracetamol to ease period and pelvic pain | First-line for mild pain; does not treat the underlying disease |
| Combined oral contraceptive pill | Hormonal pill to regulate or stop periods and reduce pain | Suppresses disease activity; not used while trying to conceive |
| Progestogens | E.g. dienogest (Visanne) taken orally to suppress endometriosis | Reduces pain and lesion activity over time |
| Hormonal IUD | Progestogen-releasing coil (e.g. Mirena) placed in the womb | Reduces bleeding and pain; lasts several years |
| GnRH analogues | Injections inducing a temporary, reversible menopause-like state | Used short-term for more severe disease; shrinks tissue |
| Laparoscopic surgery | Keyhole removal/excision of endometriosis and adhesions; robot-assisted for complex cases | Confirms diagnosis and treats disease; MediSave-claimable; can recur |
What is endometriosis?
Endometriosis is a condition where tissue similar to the lining of the womb (the endometrium) grows in places outside the uterus – commonly on the ovaries, the lining of the pelvis, the bowel or the bladder. Each month this tissue responds to hormones and bleeds like a normal period, but the blood has nowhere to escape. This causes inflammation, pain, scarring and adhesions (bands of tissue that can stick organs together).
It is a common condition, affecting roughly 1 in 10 (about 10%) of women of reproductive age, and around 30% of women who see a doctor for severe menstrual pain are found to have it. Despite being common, it is often under-diagnosed and there can be a long delay – frequently several years – between symptoms starting and a diagnosis being made, partly because severe period pain is so often dismissed as normal.
Importantly, endometriosis is a chronic condition. It cannot be “cured” in a single step and usually needs long-term management, but with the right care most women can control their symptoms and protect their fertility.
Symptoms: what to look out for
Symptoms vary widely from person to person. Some women have severe symptoms, while others have very few or none and only discover endometriosis when investigating fertility problems. Common symptoms include:
- Painful periods (dysmenorrhoea) that can be severe and are often not relieved by over-the-counter painkillers
- Chronic pelvic pain, including pain between periods
- Pain during or after sex (dyspareunia)
- Painful bowel movements or pain when passing urine, particularly during your period
- Heavy or irregular menstrual bleeding
- Difficulty conceiving or infertility
- Bloating, fatigue and other non-specific symptoms
A crucial point: the severity of your symptoms does not always match the extent of the disease. Some women with extensive endometriosis have little pain, while others with mild disease have severe pain. For this reason, pain that affects your daily life should always be taken seriously, regardless of how much disease is eventually found.
How endometriosis is diagnosed
Diagnosis usually involves a combination of steps:
- Clinical assessment – your doctor takes a detailed history of your symptoms and may perform a pelvic examination.
- Ultrasound scan – abdominal and/or transvaginal ultrasound can detect ovarian cysts (endometriomas) and signs of deeper disease, though it cannot rule endometriosis out.
- MRI – provides detailed images and is especially useful for mapping deep or extensive disease and for surgical planning.
- Laparoscopy (keyhole surgery) – this is the definitive way to diagnose endometriosis. A thin camera is inserted through a small cut near the navel under general anaesthesia, allowing the surgeon to see, confirm and assess the disease. Where appropriate, the endometriosis can be treated during the same procedure.
Because imaging can miss disease, a normal scan does not exclude endometriosis if your symptoms are suggestive.
Treatment options
There is no one-size-fits-all treatment. Your gynaecologist will tailor the plan to your symptoms, their severity, and whether you are trying to conceive now or in future. Options are generally combined:
- Pain relief – non-steroidal anti-inflammatory drugs (NSAIDs) such as mefenamic acid, and simple analgesics like paracetamol, to manage pain.
- Hormonal treatments – these suppress the disease and reduce pain by controlling or stopping periods. They include the combined oral contraceptive pill, progestogens (such as dienogest/Visanne), the hormonal IUD (e.g. Mirena), and GnRH analogues, which create a temporary, reversible menopause-like state to shrink the tissue. Hormonal treatment does not improve natural fertility, so it is not used when you are actively trying to conceive.
- Laparoscopic surgery – keyhole surgery to remove or excise endometriosis deposits, drain cysts and divide adhesions. Robot-assisted laparoscopy is available at some hospitals for complex cases. Surgery can relieve pain and may improve fertility, but endometriosis can recur, and some women need ongoing hormonal treatment afterwards or repeat surgery later.
For women who have completed their families and have severe disease, more extensive surgery may be discussed. Treatment is usually a long-term, evolving plan rather than a single fix.
Fertility, costs and financing
Endometriosis is a common cause of difficulty conceiving. If you are trying for a baby, your gynaecologist may refer you to a fertility specialist, as the best approach (surgery, assisted reproduction such as IVF, or a combination) depends on your individual situation. Acting earlier is generally better, as endometriosis can progress over time.
Laparoscopic surgery for endometriosis is day or inpatient surgery and is MediSave-claimable, with MediShield Life and Integrated Shield Plans also helping to offset hospital bills for eligible procedures. (Note that surgery done specifically for infertility may have different coverage – check with your insurer.) Costs vary widely with the complexity of disease and choice of public versus private hospital; public hospitals offer subsidised care for eligible patients. Always ask for a personalised cost estimate and financing breakdown before proceeding.
When to see a doctor and who treats it
You should see a doctor if you have:
- Severe period pain that affects your daily life, work or studies, or is not controlled by over-the-counter painkillers
- Persistent pelvic pain, pain during sex, or pain when passing urine or stool during your period
- Difficulty conceiving
Start with your GP, who can do an initial assessment and refer you onward. Endometriosis is managed by a gynaecologist (O&G specialist) – ideally one with experience in endometriosis, as complex cases benefit from specialist or multidisciplinary care. Singapore has dedicated services such as the KK Endometriosis Centre that bring together gynaecology, pain management, fertility and allied health support.
Severe period pain is common, but it is not normal to suffer in silence. Seeking help early can shorten the years many women spend without a diagnosis and protect both your quality of life and your fertility.
Related guides
- Best Gynaecology Clinics in Singapore — our editorial shortlist
- gynaecology clinics directory
- Menopause & HRT
- PCOS treatment
- Uterine fibroids treatment
Sources
- SingHealth – Endometriosis: Causes, Symptoms & Treatments
- KK Women's and Children's Hospital – KK Endometriosis Centre
- KKH – Endometriosis and Ovarian Cysts (Conditions & Treatments)
- NUHS – Endometriosis: Signs, Symptoms, Diagnosis, Treatment
- Ministry of Health Singapore – MediSave for Inpatient Care
See also
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