What Is Adenomyosis?
Adenomyosis is a benign (non-cancerous) condition of the uterus where the lining of the uterus (endometrium) actually implants into the musculature of the uterus (myometrium).
A 2025 paper policy paper published by the Lancet Regional Health states listed adenomyosis as one of the major gynaecological health concerns among the "principal gynaecological burden" among women of reproductive age in India.
A chronic, oestrogen-dependent condition, adenomyosis mostly affects women in their late 40s and 50s, although there are more and more cases diagnosed in much younger women and girls. The condition usually gets better after menopause due to the fall in oestrogen.
What Are the Types of Adenomyosis?
Two main subtypes are recognised in clinical practice, based on how the abnormal endometrium proliferates through the myometrium. Both forms can coexist in the same woman.
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Diffuse Adenomyosis
In the diffuse adenomyosis subtype, the endometrial tissue is widespread within the myometrium, and the entire uterus enlarges. Imaging would reveal a thickened, heterogeneous uterine wall. Diffuse adenomyosis is generally the most common form of the disease and presents with significant uterine enlargement and menorrhagia (abnormally heavy or prolonged menstrual bleeding)
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Focal Adenomyosis (Adenomyoma)
Focal adenomyosis presents as an ill-defined mass within the uterine wall as a result of proliferation of endometrial glands and stroma in one or more areas, known as an adenomyoma. This form may be confused with a uterine fibroid on imaging, and an MRI is often required for confirmation.
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Cystic Adenomyosis (Adenomyotic Cysts)
Cystic Adenomysis, also known as adenomyotic cysts, is a rare form of adenomyosis in which small fluid-filled cysts develop within the muscular wall of the uterus. These cysts are formed due to trapped endometrial tissue that bleeds during the menstrual cycle. The condition can cause severe pelvic pain, painful periods, heavy menstrual bleeding, and discomfort during daily activities.
How Common Is Adenomyosis in India?
Adenomyosis is an emerging condition in India, although the exact population-based prevalence is unknown. Indian studies revealed adenomyosis to be present in 16.8% of women who went through hysterectomy.
The condition is predicted to become more prevalent in India as better imaging technologies become accessible and the medical fraternity becomes more aware of the condition.
What Are the Symptoms of Adenomyosis?
Symptoms of adenomyosis are dependent on how far into the myometrium the endometrial tissue has grown. The common symptoms include:
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Heavy or Prolonged Bleeding
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Severe Menstrual Cramps (Dysmenorrhea)
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Chronic Pelvic Pain
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Painful Intercourse (Dyspareunia)
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Enlarged and Tender Uterus
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Intermenstrual Bleeding
What Causes Adenomyosis?
Although the exact cause of adenomyosis is not clearly known, several theories and risk factors have been linked to the condition. These includes:
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Invasion: One possible cause for adenomyosis is the invasive growth of endometrium into myometrium after invasion. This is thought to occur due to trauma to the uterine wall caused by prior surgical procedures such as caesarean section, hysterectomy to remove fibroids, or dilation and curettage.
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Origin: There are suggestions that adenomyosis originates from misplaced endometrium deposited in the myometrium before birth while developing in the fetus.
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Hormones: Adenomyosis is thought to be an oestrogen-dependent disorder. Therefore, when estrogen levels are high, the ectopic endometrial tissue is stimulated to grow and proliferate, with regression being observed when levels are lowered following the menopause.
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Genetic Link: Studies suggest a genetic factor might predispose certain women to adenomyosis. Having adenomyosis and possibly related conditions like endometriosis is more likely in women who have other family members with these conditions.
What Are the Complications of Adenomyosis?
Failure to diagnose and/or treat adenomyosis can impact physical health, fertility, and general well-being:
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Anaemia: Frequent, heavy bleeding can lead to loss of blood and iron deficiency, with symptoms including tiredness, breathlessness, and an inability to concentrate.
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Pain: Chronic pelvic pain impacts quality of life, physical activity, and sleep.
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Subfertility: Adenomyosis adversely affects oocyte quality, embryo development, and endometrial receptivity. This leads to reduced rates of conception, including following IVF.
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Complications During Pregnancy: Adenomyosis is associated with a higher risk of pregnancy complications, such as preeclampsia, premature birth, and hypertensive disorders.
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Mental Health: The associated chronic pain, heavy bleeding, and subfertility are also associated with high rates of depression and anxiety.
When Should I See My Healthcare Provider?
You should consult a physician without delay if you notice any of the following symptoms:
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Excessive bleeding that causes you to saturate a sanitary pad or tampon every hour for several hours in a row.
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Cramps that make you unable to perform daily tasks and interfere with work and sleep, and that do not subside with common pain relievers.
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Sustained pelvic pain or lower abdominal pressure that does not resolve with the cessation of your period.
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Pain during intercourse, especially painful during deep penetration.
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A sensation of lower abdominal fullness and pressure that may suggest an enlarged uterus.
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An inability to become pregnant within 12 months of regular intercourse with unprotected sexual relations, or 6 months if you are over age 35.
How Is Adenomyosis Diagnosed?
The diagnosis of adenomyosis is based on history, physical examination, imaging, and, historically, histopathological examination of uterine tissue after hysterectomy. Modern imaging techniques have made it possible to make the diagnosis before surgery with great accuracy.
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Medical History and Symptom Assessment
Your doctor may ask you questions in relation to menstrual cycles, extent and character of pain, previous pregnancy history, and previous surgery to the uterus. Careful attention to these details will help distinguish adenomyosis from disorders with similar symptoms, such as uterine fibroids and endometriosis.
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Pelvic Examination
The clinical features and findings of pelvic examination may include a diffusely enlarged, boggy, and tender uterus compared to fibroids, where there is typically a focal, asymmetrically enlarged uterus, which may feel firmer and more discrete.
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Transvaginal Ultrasound (TVUS)
TVUS is considered the first-line investigative imaging modality in the suspected case of adenomyosis. It can identify, with a significant degree of accuracy, changes associated with adenomyosis.
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Magnetic Resonance Imaging (MRI)
MRI is extremely helpful when trying to differentiate focal adenomyosis from fibroids and is often used when planning surgery. MRI demonstrates a thickened junctional zone, normally in excess of 12 mm, which is the key sign of adenomyosis.
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Diagnostic Criteria Summary
Diagnostic Method What It Assesses What It Assesses Medical History & Symptoms Menstrual pattern, pain severity, prior surgery Initial clinical evaluation Pelvic Examination Uterine size, tenderness, and texture Supportive assessment Transvaginal Ultrasound (TVUS) Myometrial texture, junctional zone, cysts First-line imaging investigation MRI Junctional zone thickness, lesion extent Confirming TVUS findings, pre-surgical planning Histopathology (post-hysterectomy) Endometrial glands within the myometrium Definitive diagnosis after surgery
How is Adenomyosis Managed?
There is no one-size-fits-all management for women with adenomyosis; it depends on a woman's age, symptom severity, desire to conceive in the future, and when she is near menopause.
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Medical Management
- NSAIDs: Reduce menstrual pain but do not treat the underlying disease.
- Hormonal contraceptives: Help regulate periods and reduce pain and bleeding.
- LNG-IUS (Hormonal IUD): A first-line treatment that reduces heavy menstrual bleeding.
- Progestins/Dienogest: Hormonal medicines that reduce pain and suppress endometrial tissue activity.
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Interventional Management
- Uterine Artery Embolisation (UAE): Blocks part of the uterus blood supply to reduce bleeding and shrink adenomyotic tissue.
- High-Intensity Focused Ultrasound (HIFU): Uses focused ultrasound to destroy adenomyotic tissue while preserving the uterus.
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Surgical Management
- Endometrial Ablation: Removes or destroys the uterine lining to reduce bleeding; not a definitive cure.
- Adenomyomectomy: Surgical removal of localised adenomyotic tissue, suitable for women wishing to preserve fertility.
- Hysterectomy: Removal of the uterus; the only definitive cure for severe adenomyosis when other treatments fail and fertility is no longer desired.
What is the Prognosis for Adenomyosis?
Adenomyosis is a chronic, relapsing condition that cannot be cured with medication or conservative treatment. In the majority of women, symptoms can be controlled, and a reasonable quality of life may be expected with management.
The condition is hormonal, which means symptoms may be exacerbated during the reproductive years and may decrease significantly or resolve after menopause.
Hysterectomy will permanently resolve the symptoms in women who no longer wish to conceive and who have been proven to have a severe, refractory condition.
The long-term prognosis for adenomyosis is generally good if the condition is diagnosed early, management is appropriate, and follow-up is adequate.
Can Adenomyosis be Prevented?
Unfortunately, there is currently no definitive prevention method for adenomyosis. The following points, however, can potentially decrease the likelihood of having a severe case or slow down the progress of the disease:
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Avoid unnecessary invasive procedures to the uterus, for example, repeated curettage, which may separate the endometrium from the myometrium.
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Consider the risks associated with uterine procedures, and have the least invasive surgery when intervention is necessary.
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Treat coexisting diseases like endometriosis or fibroids aggressively and early.
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Try to maintain a healthy weight, as high fat mass can increase circulating estrogen, leading to estrogen-dependent problems like adenomyosis.
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Get immediate medical attention for worsening menstrual symptoms. Don't attribute it to normal fluctuations, and get evaluated to avoid delays that may adversely affect treatment.
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Regular exercise and stress management can support the overall reproductive health of a female and quality of life..
Does Health Insurance Cover Adenomyosis?
Yes, adenomyosis is covered as a gynaecological disorder by all health insurance policies in India. Coverage may include diagnostic tests such as pelvic ultrasound & MRI scans, consultations, day care expenses, and hospitalisation costs for procedures like hysterectomy or adenomyomectomy depending on the policy terms, waiting period, and exclusions.
If you are planning to conceive after being diagnosed with adenomyosis, it is important to know that fertility treatments, like IVF, are usually not covered under a standard health insurance policy. However, some insurers offer coverage for such treatments under maternity or fertility riders. .
How Much Health Insurance Coverage Is Needed for Adenomyosis Treatment?
The treatment cost for adenomyosis may start from around ₹60,000 and can significantly increase depending on the severity of the condition & type of treatment required.
For a woman who has a more severe form of the condition and might need to undergo hysterectomy or assisted reproductive technology like IVF, the cost is likely to mount substantially. In such cases, having a health insurance cover of at least ₹5-10 lakh will help in managing medical expenses & procedures efficiently.
It is recommended to compare health insurance plans online to zero down on the coverage and benefits per your healthcare needs.
FAQs
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Q1. What is adenomyosis, and how is it different from endometriosis?
Ans: Adenomyosis is a condition where the tissue that normally lines your uterus, called the endometrium, starts to grow into the muscular wall of the uterus itself. Endometriosis, on the other hand, is when similar tissue grows outside your uterus, such as on your ovaries, fallopian tubes, or the lining of your pelvis. -
Q2. Can adenomyosis go away on its own?
Ans: Unfortunately, adenomyosis generally doesn't disappear on its own while you're still menstruating. However, since it's an oestrogen-dependent condition, your symptoms should get significantly better once you reach menopause and your oestrogen levels naturally decrease. Until then, medical treatment can help manage the symptoms. -
Q3. Is adenomyosis the same as uterine fibroids?
Ans: No, they're different. Fibroids are well-defined, non-cancerous tumours that form in or on your uterus. Adenomyosis involves endometrial tissue being scattered throughout the uterine muscle wall, either broadly or in localised areas.
