Uterine Lining Abnormalities In singapore

Your uterine lining plays a key part in reproductive function and overall wellbeing. If you experience irregular bleeding, unusually heavy periods, or difficulties conceiving, uterine lining abnormalities may be a contributing factor. Understanding these conditions is the first step toward finding appropriate evaluation and treatment.

Uterine lining abnormalities include a range of conditions affecting the endometrium, the inner layer of the uterus. These conditions can range from benign thickening to precancerous changes, with each requiring a different approach to management. Uterine lining abnormalities include a range of conditions affecting the endometrium, the inner layer of the uterus.

Dr. Harvard Lin

Obstetrician & Gynaecologist

MBBS (SG)|MRCOG (UK)|MMed (OBGYN) (SG)

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Types Causes & Risks Symptoms When to See a Doctor Diagnosis Treatment Complications & Prevention FAQ Conclusion

What are Uterine Lining Abnormalities?

Uterine lining abnormalities refer to any irregular changes in the endometrium, the tissue that lines the inside of your uterus. This lining naturally thickens and sheds during your menstrual cycle, but various factors can cause it to develop abnormally. These abnormalities can affect women of all ages but are more common during reproductive years and around menopause.

Disruptions in the endometrium’s normal cycle can lead to a variety of issues, including heavy or irregular bleeding, pain, or fertility challenges. While many of these conditions are benign, some require careful monitoring and treatment to prevent complications.

Types of Uterine Lining Abnormalities

Endometrial Hyperplasia

Endometrial hyperplasia occurs when the uterine lining becomes abnormally thick due to an overgrowth of cells. It is often linked to higher levels of oestrogen relative to progesterone. The condition is grouped as simple or complex, and may include atypia (abnormal cell changes) which can increase the risk of further complications.

Endometrial Polyps

These are benign growths that develop from the endometrial tissue and attach to the uterine wall by a stalk or broad base. Polyps can range from a few millimetres to several centimetres in size. They’re most common in women aged 40-50 but can occur at any age.

Endometrial Atrophy

This condition involves thinning of the uterine lining, typically occurring after menopause when oestrogen levels decline. The endometrium becomes fragile and may bleed irregularly despite being thin.

Asherman’s Syndrome

Also known as intrauterine adhesions, this condition involves scar tissue formation inside the uterus. These adhesions can partially or completely fill the uterine cavity, potentially affecting menstrual flow and fertility.

Endometritis

This is inflammation of the endometrial lining, usually caused by infection. It can be acute (sudden onset) or chronic (long-lasting) and may affect fertility if left untreated.

Causes

Hormonal imbalances between oestrogen and progesterone
Previous uterine procedures (D&C, caesarean section)
Infections ascending from the vagina or cervix
Retained tissue after pregnancy
Intrauterine device (IUD) complications
Chronic endometrial inflammation

Risk Factors

Age over 35, especially during perimenopause
Obesity, which can increase oestrogen production
Polycystic ovary syndrome (PCOS)
Diabetes and insulin resistance
Never having been pregnant
Early onset of menstruation (before age 12)
Late menopause (after age 55)
Use of tamoxifen for breast cancer
Family history of endometrial or colorectal cancer
Oestrogen therapy without progesterone

Signs & Symptoms

Mild Symptoms

Slightly heavier than normal periods
Mild spotting between periods
Menstrual cycles varying by a few days
Mild pelvic discomfort during menstruation
Light brown discharge occasionally

Moderate Symptoms

Prolonged menstrual bleeding (lasting over 7 days)
Significant bleeding between periods
Passing small blood clots during menstruation
Pelvic pain or pressure sensations
Irregular menstrual cycles (varying by weeks)
Fatigue from mild anaemia

Severe Symptoms

Very heavy bleeding requiring pad changes hourly
Large blood clots during menstruation
Severe anaemia causing weakness and dizziness
Complete absence of periods (amenorrhoea)
Severe pelvic pain affecting daily activities
Postmenopausal bleeding
Inability to conceive despite trying

Symptoms of uterine lining abnormalities often develop gradually and may be mistaken for normal menstrual variations. The severity and combination of symptoms depend on the specific type of abnormality and individual factors.

Heavy periods or spotting between cycles may signal uterine lining changes.

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When to See a Doctor

You should seek medical attention if you experience any bleeding after menopause, as this requires immediate evaluation. Consult a gynaecologist if your periods last longer than seven days, you’re soaking through pads or tampons every hour, or you’re passing blood clots larger than a 20-cent coin.

Other concerning signs include bleeding between periods that persists for more than two cycles, severe pelvic pain that interferes with daily activities, or signs of anaemia such as extreme fatigue, dizziness, or shortness of breath. Women trying to conceive for over a year without success should also seek evaluation, as uterine lining abnormalities can affect fertility.

During your first consultation, our Gynaecologist may discuss your symptoms and menstrual history, review any prior gynaecological procedures, perform a pelvic examination, and recommend further testing if needed. Early evaluation often allows for simpler treatment options and better outcomes.

Diagnosis & Testing Methods

Diagnosis of uterine lining abnormalities begins with a transvaginal ultrasound, which provides detailed images of your endometrium. This painless procedure measures endometrial thickness and can identify polyps, fibroids, or other structural abnormalities. It is usually scheduled early in the menstrual cycle when the lining is naturally thinner.

An endometrial biopsy may follow, where a small tissue sample is taken from the uterine lining. This can be performed in the clinic within a few minutes. The sample is examined for abnormal cells or signs of thickening, with results usually available in 3–5 days.

A hysteroscopy allows direct visualisation of your uterine cavity using a thin, lighted telescope. This procedure can both diagnose and treat certain conditions, such as removing polyps during the same session. Saline infusion sonography combines ultrasound with sterile saline solution to enhance visualisation of the uterine cavity. Blood tests may also be ordered to check hormone levels, complete blood count, and thyroid function.

Treatment Options Overview

Hormonal Therapy

Hormonal treatments are often the first approach for managing uterine lining abnormalities. Progesterone therapy helps balance excess oestrogen and can reverse simple endometrial hyperplasia. Options include oral progesterone tablets, progesterone-releasing IUDs, or injectable forms. Treatment duration typically ranges from 3-6 months, with regular follow-up to monitor progress.

Combined Oral Contraceptives

Birth control pills containing both oestrogen and progesterone help regulate menstrual cycles and reduce endometrial thickness. They work by preventing ovulation and maintaining stable hormone levels throughout the cycle. This option is suitable for women who also require contraception and can help control symptoms over the long term.

GnRH Agonists

These medications temporarily suppress oestrogen production, creating a medically induced, reversible menopausal state. They’re particularly useful for reducing endometrial thickness before surgery or in cases of severe hyperplasia.

Endometrial Ablation

This minimally invasive procedure destroys the uterine lining using heat, cold, or radiofrequency energy. It’s suitable for women with heavy menstrual bleeding who plan future pregnancies. The procedure takes about 45 minutes and can often be performed under local anaesthesia with sedation.

Hysteroscopic Polypectomy

Removal of endometrial polyps through hysteroscopy is both diagnostic and therapeutic. Using specialised instruments inserted through the hysteroscope, polyps can be removed completely while preserving healthy tissue. This outpatient procedure typically takes 20-30 minutes.

Dilation and Curettage (D&C)

This procedure involves dilating the cervix and removing tissue from the uterine lining using a curette. While primarily diagnostic, D&C can provide temporary symptom relief. It’s often combined with hysteroscopy for better visualisation and complete removal of abnormal tissue.

Hysterectomy

Surgical removal of the uterus is considered only when other treatments fail or in cases of complex atypical hyperplasia with high cancer risk. Options include vaginal, laparoscopic, or robotic-assisted approaches, each with different recovery times and considerations.

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Complications if Left Untreated

Untreated uterine lining abnormalities can lead to chronic anaemia from ongoing blood loss, affecting energy levels, and overall health. The constant iron deficiency affects your immune system, cognitive function, and ability to perform daily activities.

Fertility may also be affected, as abnormal endometrial conditions can interfere with embryo implantation or increase the risk of miscarriage. In some cases, adhesions from untreated inflammation or infection may reduce the uterine cavity’s capacity to support pregnancy.

Certain types of endometrial abnormalities, particularly those with atypical cell changes, carry a higher risk of progressing to endometrial cancer if not monitored and managed. Regular follow-up and timely treatment are important to reduce these risks and maintain reproductive and overall health.

Prevention

While not all uterine lining abnormalities are preventable, certain lifestyle modifications can reduce your risk. Maintaining a healthy weight through balanced diet and regular exercise helps regulate oestrogen levels, as excess body fat produces additional oestrogen. Aim for at least 150 minutes of moderate exercise weekly.

Managing underlying conditions like PCOS or diabetes improves hormonal balance and reduces endometrial abnormality risk. If you’re taking oestrogen therapy for menopausal symptoms, ensure it’s balanced with progesterone unless you’ve had a hysterectomy. Regular gynaecological check-ups allow early detection of problems before symptoms develop.

Women with additional risk factors may benefit from discussing preventive strategies with their gynaecologist. This can include earlier monitoring, tailored hormonal approaches, or lifestyle adjustments. Those with strong family histories of endometrial or colorectal cancer may consider genetic counselling.

Frequently Asked Questions (FAQ)

Can uterine lining abnormalities affect my fertility?

Yes, various uterine lining abnormalities can impact fertility. Polyps and adhesions may prevent embryo implantation, while hormonal imbalances affecting the endometrium can make it difficult to maintain a pregnancy. Many of these conditions are treatable, and fertility often improves significantly after appropriate treatment. Our Gynaecologist can assess your specific situation and recommend fertility-preserving treatment options.

How long does treatment for endometrial hyperplasia typically take?

Treatment duration varies depending on the type and severity of hyperplasia. Simple hyperplasia without atypia often responds to 3-6 months of progesterone therapy. More complex cases of hyperplasia may require longer treatment with regular monitoring. Follow-up biopsies are performed to confirm resolution, and some women may need ongoing therapy to reduce the risk of recurrence.

Are uterine lining abnormalities hereditary?

While most uterine lining abnormalities aren’t directly inherited, genetic factors can increase your risk. Family history of endometrial, ovarian, or colorectal cancer may indicate hereditary cancer syndromes that affect your endometrial health. Conditions like PCOS, which has genetic components, also increase risk. Discuss your family history with our Gynaecologist for personalised risk assessment.

What’s the difference between endometrial biopsy and D&C?

An endometrial biopsy is a simple in-clinic procedure that removes a small tissue sample using a thin tube. It’s quick, requires no anaesthesia, and provides diagnostic information. D&C is more comprehensive, removing more tissue from the entire uterine cavity under sedation or anaesthesia. D&C can be both diagnostic and therapeutic, providing temporary symptom relief while obtaining tissue for analysis.

Can I still get pregnant after endometrial ablation?

Pregnancy after endometrial ablation is strongly discouraged and can be dangerous. While the procedure doesn’t guarantee sterility, any pregnancy that occurs carries high risks of miscarriage, premature delivery, and abnormal placentation. Women who undergo ablation should use reliable contraception until menopause. If you desire future pregnancy, alternative treatments should be considered.

How often should I have follow-up appointments after treatment?

Follow-up frequency depends on your specific condition and treatment. After hormonal therapy for hyperplasia, an endometrial biopsy is usually perforemed within 3-6 months to confirm resolution. Post-surgical follow-up usually occurs at 2 weeks and 3 months. Long-term monitoring may include annual ultrasounds or biopsies for certain conditions. Our gynaecologist can create a personalised follow-up schedule based on your needs.

Conclusion

Uterine lining abnormalities encompass a range of conditions that can significantly impact your menstrual health, fertility, and overall well-being. From benign polyps to precancerous hyperplasia, each condition requires careful evaluation and individualised treatment. Early detection and timely intervention are important to manage symptoms and prevent complications.

A range of treatments is available, including hormonal therapy, minimally invasive procedures, and surgical options, depending on the type and severity of the condition. With proper assessment and management, most women see meaningful improvement in their symptoms and quality of life.

Take the First Step Towards Better Health

Uterine lining abnormalities can affect your menstrual cycle, fertility, and wellbeing. Book a consultation with a gynaecologist to discuss your symptoms, get a proper diagnosis, and explore personalised treatment options.

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Dr. Harvard Lin

Obstetrician & Gynaecologist

MBBS (SG)|MRCOG (UK)|MMed (OBGYN) (SG)

Dr. Harvard Lin is renowned for his expertise in female pelvic medicine and reconstructive surgery.

Dr. Lin’s journey in medicine began at the prestigious National University of Singapore, where he earned his Bachelor of Medicine and Bachelor of Surgery (MBBS). His commitment to excellence led him to further his education by becoming a Member of the Royal College of Obstetricians and Gynaecologists (MRCOG) through the Royal College of Obstetricians and Gynaecologists in the United Kingdom. He also holds a Master of Medicine (Obstetrics and Gynaecology) from the National University of Singapore.

As the Chief Coordinator of Gynaecologic Services at the National University Health System (NUHS), Dr. Lin plays a pivotal role in ensuring the highest quality care for women’s health. His leadership is also evident in his position as the Deputy Clinical Director of Obstetrics and Gynaecology at NUHS, where he contributes to shaping gynaecologic practices and growth across the cluster including Ng Teng Fong Hospital, Alexandra Hospital and Jurong Medical Centre.

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