Asherman’s Syndrome: Symptoms, Causes, and Support in the UK

Asherman’s Syndrome is an acquired condition characterised by the formation of scar tissue, or adhesions, within the uterus. In many cases, the front and back walls of the uterus stick together, which can partially or completely obliterate the uterine cavity. This scarring can interfere with the normal menstrual cycle and make it difficult for an embryo to implant, leading to fertility issues or recurrent pregnancy loss.

While it is considered a rare condition, it is often underdiagnosed because many women are asymptomatic or assume their menstrual changes are a natural result of previous procedures. In the UK, the condition is usually managed by gynaecologists with an interest in reproductive medicine or endosurgical techniques, following NICE (National Institute for Health and Care Excellence) principles for surgical safety and effectiveness.

The symptoms of Asherman’s Syndrome can vary significantly depending on the severity of the scarring. For some, the condition is only discovered during investigations for infertility. Common signs to look out for include:

• Hypomenorrhoea: Periods that have become significantly lighter than they were previously.
• Amenorrhoea: Periods that have stopped entirely (secondary amenorrhoea), despite not being pregnant or entering menopause.
• Cyclical Pelvic Pain: If scar tissue blocks the exit of the cervix, menstrual blood may be trapped in the uterus, causing monthly cramping without visible bleeding.
• Recurrent Miscarriage: Difficulty maintaining a pregnancy due to the lack of healthy uterine lining.
• Infertility: Difficulty conceiving after a year of regular unprotected intercourse.

It is important to note that if you are using hormonal contraception, such as the Mirena coil or the progesterone-only pill, your periods may naturally be light or absent, which can make Asherman’s harder to detect.

Asherman’s Syndrome is almost always the result of trauma to the uterine lining (the endometrium). The most frequent trigger is a procedure known as Dilation and Curettage (D&C). This involves scraping the uterine wall and is often performed following a miscarriage, an elective termination, or to remove retained placenta after childbirth.

Specific Risk Factors include:

• Post-partum D&C: The risk is often higher if a D&C is performed between two and four weeks after delivery, as the uterine lining is particularly soft and vascular.
• Uterine Infections: Pelvic inflammatory disease (PID) or infections following surgery can increase the likelihood of scarring.
• Other Surgeries: Procedures such as the removal of fibroids (myomectomy) or a caesarean section can occasionally lead to adhesions, though this is less common than with a D&C.
• Genital Tuberculosis: While rare in the UK, this remains a significant cause of severe Asherman's Syndrome globally.

If you suspect you have uterine scarring, your GP will initially rule out other causes of irregular periods, such as PCOS or thyroid issues, through blood tests. However, standard pelvic ultrasounds often fail to show adhesions clearly. According to NHS clinical pathways, the gold standard for diagnosis is a hysteroscopy.

During a hysteroscopy, a thin camera is inserted through the cervix into the womb. This allows the consultant to see the extent of the scar tissue and determine its thickness. Other diagnostic tools include a Hysterosalpingogram (HSG), which uses X-rays and dye to check for blockages, or a Saline Infusion Sonography (SIS), where salt water is used to expand the uterus during an ultrasound for a clearer view.

Treatment is generally recommended if you are experiencing pain or wish to restore your fertility. The primary treatment is Operative Hysteroscopy, where the adhesions are carefully cut away using tiny surgical scissors or lasers under camera guidance. Using heat (electrosurgery) is often avoided to prevent further damage to the delicate endometrium.

Following surgery, your consultant may suggest:

• Hormone Therapy: High doses of oestrogen are often prescribed for several weeks to encourage the healthy lining of the womb to regrow.
• Uterine Stents: A small balloon or a copper-free coil may be placed inside the uterus for a short period to keep the walls apart while they heal.
• Repeat Procedures: Severe cases may require more than one surgery to fully restore the cavity.

Recovery is usually quick, with most women returning to normal activities within a day or two, though you may experience some spotting and mild cramping.

Discussing menstrual changes can be sensitive, and many women find that an online doctor UK service provides a comfortable environment to begin the conversation. You should consider booking a consultation if:

• Your periods have changed drastically after a recent miscarriage or uterine surgery.
• You are struggling to conceive and have a history of pelvic surgery.
• You require a second opinion on your symptoms before seeking a private gynaecology referral.

A GP online can review your medical history, discuss your symptoms in detail, and provide an initial assessment. They can advise on whether your symptoms align with NICE guidelines for specialist referral and provide a private referral letter to a gynaecologist if necessary. This can significantly speed up the process of getting the diagnostic tests you need.