Endometriosis: Conventional, Regenerative, and Functional Approaches

The short answer: Endometriosis treatment options fall into three groups, hormonal medication, laparoscopic surgery, and supportive anti-inflammatory and functional care, and most people get the best symptom control from a combination of them. According to the World Health Organization (2025), endometriosis affects an estimated 10 percent of reproductive-age women worldwide, about 190 million people, and treatment aims to control pain, protect fertility and limit long-term impact rather than remove the disease for good.

Endometriosis is a chronic inflammatory condition where tissue similar to the uterine lining grows outside the uterus, often causing pelvic pain, painful periods, and sometimes infertility. It is a long-term condition, but symptoms can be managed well. Conventional care relies on hormonal medication and, when needed, laparoscopic surgery. Anti-inflammatory and functional approaches such as diet, omega-3s, vitamin D, pelvic floor physical therapy, and acupuncture show promise for symptom relief, though the evidence is mixed and they work best alongside, not instead of, medical care.

What endometriosis is

Endometriosis happens when tissue resembling the endometrium (the lining shed during a period) grows in places it should not, most often on the ovaries, fallopian tubes, and the lining of the pelvis. This tissue responds to hormonal cycles the same way the uterine lining does. It thickens, breaks down, and bleeds, but it has no way to leave the body. The result is local inflammation, irritation, scar tissue, and adhesions that can bind organs together.

Estimates suggest endometriosis affects roughly 6 to 10 percent of women and people assigned female at birth of reproductive age, and the WHO endometriosis fact sheet puts the global figure at about 10 percent. Among those with pelvic pain or infertility, the figure is higher. Despite how common it is, diagnosis is often delayed by years, partly because period pain is frequently dismissed as normal and partly because symptoms vary so widely from person to person.

Types and stages of endometriosis

Clinicians usually describe three main forms. Superficial peritoneal endometriosis is a scattering of small lesions on the pelvic lining. Ovarian endometriomas, often called chocolate cysts, are fluid-filled cysts on the ovary. Deep endometriosis, also called deep infiltrating endometriosis (DIE), grows more than a few millimeters under the surface and can involve the bowel, bladder or ureters.

Surgeons often stage disease with the revised American Society for Reproductive Medicine (rASRM) system, from stage I (minimal) to stage IV (severe), or with the European Enzian classification for deep disease. Stage describes how much tissue is present, not how much pain a person feels. Adenomyosis, where similar tissue grows into the muscle wall of the uterus, is a related condition that often occurs alongside endometriosis.

Common symptoms

• Painful periods (dysmenorrhea) that interfere with daily life
• Chronic pelvic pain, sometimes unrelated to the menstrual cycle
• Pain during or after sex (dyspareunia)
• Painful bowel movements or urination, especially during periods
• Heavy or irregular bleeding
• Fatigue, bloating, and digestive symptoms that can mimic IBS
• Difficulty conceiving

Symptom severity does not reliably match the amount of disease present. Some people with extensive endometriosis have few symptoms, while others with small amounts of tissue experience significant pain.

The bowel overlap matters in practice. Bloating, cramping and altered bowel habits are often first labeled as irritable bowel syndrome, and some people have both conditions. A pattern that worsens around periods is a useful clue to raise with a clinician, and the WHO notes that heavy bleeding can also contribute to iron deficiency and fatigue.

How endometriosis is diagnosed

Diagnosis has shifted in recent years toward listening to symptoms rather than waiting for surgical proof. Guidelines from the European Society of Human Reproduction and Embryology (ESHRE) and the UK’s National Institute for Health and Care Excellence (NICE) now support starting treatment based on a careful symptom history, even when imaging is inconclusive.

The ESHRE endometriosis guideline, published by Becker and colleagues in Human Reproduction Open (2022), explicitly challenges laparoscopy and histology as the only gold standard. NICE guideline NG73, Endometriosis: diagnosis and management (2017, updated 2024), sets out when to refer to a gynecology service or a specialist endometriosis center.

Diagnostic steps may include:

• Clinical history and pelvic examination to map symptoms and check for tenderness or masses.
• Transvaginal ultrasound, useful for detecting ovarian endometriomas (cysts) and signs of deeper disease.
• MRI, which helps assess deep endometriosis involving the bowel, bladder, or ureters before surgery.
• Laparoscopy, a keyhole surgical procedure that allows direct visualization and tissue sampling. It was long considered the diagnostic gold standard, but current guidance stresses that a normal scan does not rule out endometriosis and should not delay care.

Who diagnoses and treats endometriosis?

A primary care physician or general gynecologist (OB-GYN) is usually the first stop and can start pain relief and hormonal treatment. Complex or deep disease is best handled by a minimally invasive gynecologic surgeon or a multidisciplinary endometriosis center, which may include colorectal surgeons and urologists.

A reproductive endocrinologist leads care when fertility is the priority. Pelvic floor physical therapists, pain medicine specialists, registered dietitians and mental health clinicians often round out the team, because long-term pain affects sleep, mood and work as well as the pelvis.

Conventional treatment

The goal of conventional treatment is to reduce pain, slow the progression of lesions, and support fertility when that is a priority. There is no medication that eliminates the disease, so treatment is about long-term management.

Pain relief

Nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen and naproxen are often the first step for period-related pain. They do not treat the underlying tissue but can take the edge off symptoms for many people.

Hormonal therapy

Because endometriosis is driven by hormonal cycles, suppressing or steadying those cycles is a mainstay of treatment. Options include:

• Combined oral contraceptives, often used first because they are well tolerated and can reduce period pain.
• Progestins such as dienogest or the levonorgestrel intrauterine system, which thin the lining and calm lesion activity.
• GnRH agonists and antagonists, which lower estrogen to put the body in a temporary, reversible menopause-like state. These are effective for pain but can cause hot flashes and bone density loss, so they are often paired with low-dose “add-back” hormone therapy and used for limited periods.
• Aromatase inhibitors, sometimes added in resistant cases, usually alongside another hormonal agent.

Studies comparing dienogest with GnRH agonists plus add-back therapy have found both can be similarly effective for long-term pain control, with dienogest often better tolerated. All of these are prescription medicines and require medical supervision, since side effects and suitability vary by individual.

Which endometriosis medications are FDA approved?

Two oral GnRH antagonists are FDA approved for moderate to severe endometriosis pain in the United States. Elagolix was approved on July 23, 2018; according to its FDA prescribing information, the 150 mg once-daily dose is limited to 24 months and the 200 mg twice-daily dose to 6 months, because both lower bone mineral density.

Relugolix combination therapy, which pairs relugolix 40 mg with estradiol 1 mg and norethindrone acetate 0.5 mg in one daily tablet, gained the endometriosis pain indication in August 2022. Its FDA label limits use to 24 months and recommends yearly bone density checks. Injectable GnRH agonists such as leuprolide acetate are older options, usually given with add-back therapy. Dienogest on its own is widely used in Europe and Asia but is not sold as a standalone endometriosis drug in the United States.

Surgery

When medication does not control symptoms, or when deep disease, large endometriomas, or fertility concerns are involved, surgery may be considered. Guidelines recommend a laparoscopic (keyhole) approach where possible, with the surgeon removing or destroying endometriosis tissue and freeing adhesions. Surgery can meaningfully reduce pain and improve fertility for some, but recurrence is possible, and repeat operations carry their own risks. For complex deep disease involving the bowel or bladder, a short course of GnRH agonists before surgery is sometimes used.

The two main techniques are excision, where the surgeon cuts lesions out, and ablation, where lesions are destroyed with heat or energy. Excision allows tissue to be sent for pathology and is usually preferred for deep disease. Hormonal treatment after surgery is often recommended to lower the chance of symptoms returning.

Does a hysterectomy treat endometriosis?

A hysterectomy removes the uterus, but endometriosis lesions sit outside the uterus, so it does not reliably end symptoms. The WHO notes that hysterectomy, usually with removal of the ovaries, may be considered for people who have not responded to other treatment and are not planning pregnancy, and that some patients still have symptoms afterward. Removing the ovaries causes surgical menopause, which brings its own trade-offs.

Anti-inflammatory and functional approaches

Because inflammation is central to how endometriosis causes pain, many people explore dietary and lifestyle changes to support their treatment. The evidence base for most of these approaches is still developing, studies are often small, and results are mixed. None of them replace medical care or treat the underlying disease. Several are low risk and may help some people feel better, and a few are backed by reasonable early data.

Functional medicine clinicians tend to combine these tools into one plan built around inflammation, gut symptoms, sleep and stress. The ESHRE guideline (2022) reviewed non-pharmacological treatments and could not make firm recommendations for most of them, which is a fair summary of where the science stands. These visits and products are usually cash pay rather than covered by insurance.

Diet

An umbrella review of dietary studies points toward possible benefit from diets rich in antioxidants and anti-inflammatory nutrients, with reduced intake of pro-inflammatory foods. A Mediterranean-style pattern has been associated with improvements in pain and quality of life in some research. For people who also have IBS-type symptoms, a trial of a low-FODMAP diet or a gluten-free approach has helped reduce bloating and discomfort, though this addresses overlapping gut symptoms rather than the endometriosis itself. Diet is unlikely to harm and may be worth trying with guidance from a dietitian.

Supplements

A systematic review and meta-analysis of randomized trials found that anti-inflammatory dietary supplements were associated with a meaningful reduction in pelvic pain. Omega-3 fatty acids have shown promise for reducing period pain, particularly when combined with vitamin D. Vitamin D is of interest because people with endometriosis often have lower levels, and it plays a role in immune regulation. These findings are encouraging but not definitive, and supplements can interact with medications, so it is sensible to check with a clinician before starting them.

Dosing questions come up often. Our notes on how omega-3 doses are measured and on testing and correcting vitamin D levels explain what the labels mean, and a blood test is the sensible starting point before taking vitamin D long term.

Pelvic floor physical therapy

Chronic pelvic pain can lead to tight, overactive pelvic floor muscles, which then create their own pain. A specially trained pelvic floor physical therapist (physiotherapist outside the US) can help release this tension and improve function. This is a clinician-led, evidence-supported option that is increasingly part of comprehensive endometriosis care.

Acupuncture and mind-body care

Several trials and a meta-analysis suggest acupuncture may reduce period pain and chronic pelvic pain, with effects lasting for some weeks after a course of treatment. Stress-reduction practices, gentle movement, and good sleep do not treat lesions but can help with the pain perception and fatigue that come with a chronic condition.

Long-standing endometriosis pain can also sensitize the nervous system, so pain persists even after lesions are treated. The WHO notes that early diagnosis and care may reduce long-term symptoms, possibly including central nervous system pain sensitization. Pain medicine approaches used for other chronic pain conditions, including physical therapy, pain psychology and nerve-targeted medicines, can help in that situation.

A note on regenerative therapies

You may see clinics market regenerative treatments such as stem cell therapy or platelet-rich plasma for endometriosis. At present there is no robust human evidence that these treat endometriosis, and they should be considered experimental. Approach any such offer with caution and a clear-eyed look at what has actually been studied.

The FDA has not approved any stem cell product for endometriosis, and most clinic-based stem cell treatments are unapproved and cash pay; our explainer on which stem cell products the FDA has approved sets out the current list. Platelet-rich plasma is used for tendons and joints, not for pelvic lesions. If a clinic offers either for endometriosis, ask for the published human trial behind the offer and whether it is part of a registered study on ClinicalTrials.gov.

How endometriosis care changes around menopause

Endometriosis symptoms usually ease after menopause, as estrogen levels fall. They do not always disappear, and lesions can stay active in a minority of people, particularly when estrogen is taken afterward without a progestogen.

Menopausal hormone therapy, often called hormone replacement therapy (HRT), is still an option for people with a history of endometriosis who have hot flashes, sleep problems or bone concerns. The ESHRE guideline (2022) suggests that clinicians consider combined estrogen and progestogen therapy rather than estrogen alone in this group, including after hysterectomy, to lower the chance of reactivating remaining tissue. The same thinking applies after surgical menopause, when the ovaries are removed and symptoms start abruptly.

A clinician who prescribes hormone therapy regularly can weigh those choices against personal risk factors. If you are comparing prescribers, the national list of HRT and hormone clinics shows practices by state, and our overview of menopause symptoms and care covers the wider picture.

How to build an endometriosis treatment plan

Most people move through a predictable sequence of steps. A written plan makes it easier to see what has been tried, what helped and what comes next.

1. Track symptoms for two or three cycles. Note pain days, pain scores, bleeding, bowel and bladder symptoms, and pain with sex, so a clinician sees the pattern.
2. Start first-line care. NSAIDs plus a combined contraceptive or a progestin is the usual first step in ESHRE and NICE guidance, often before any surgery.
3. Get imaging if symptoms persist. A transvaginal ultrasound, and MRI when deep disease is suspected, guides the next decision.
4. Ask about referral. Persistent pain, suspected deep disease or a fertility goal is a reason to see an endometriosis specialist or reproductive endocrinologist.
5. Add supportive care. Pelvic floor physical therapy, dietary changes, supplements checked with a clinician, and pain psychology can sit alongside medical treatment.
6. Review the plan every few months. Side effects, bone health on GnRH medicines and changing goals such as pregnancy all shift the best option.

Using the clinic directory

Regenerated.com does not list endometriosis specialists as a category, but the directory can help with adjacent care such as hormone therapy. Listing order is not paid ranking. Featured slots are clearly labeled and capped, Verified means the clinic has passed credential checks rather than paid for placement, and Regenerated.com is free for patients. Inclusion in the directory is not an endorsement, and our guide to featured, verified and organic listings explains each label.

Frequently asked questions

Can endometriosis be cured?

No treatment removes endometriosis permanently, according to the World Health Organization (2025). The aim of treatment is to manage symptoms, slow progression, and protect fertility where relevant. Many people achieve good symptom control through a combination of hormonal medication, laparoscopic surgery and supportive care such as pelvic floor physical therapy, and symptoms often ease after menopause. Lesions and pain can return after surgery or after stopping hormones, so most plans are long term.

Does diet really make a difference?

Diet appears to help some people, particularly anti-inflammatory or Mediterranean-style eating, but the research is still limited and results vary. The ESHRE guideline (2022) could not make firm recommendations on diet. It is best viewed as a low-risk support to medical care rather than a replacement for it. A low-FODMAP trial can ease bloating when IBS-type symptoms overlap, and working with a registered dietitian helps you trial changes safely without cutting out nutrients you need.

Will I be able to get pregnant?

Many people with endometriosis conceive naturally. The condition can reduce fertility, and the WHO estimates that 25 to 50 percent of women with infertility have endometriosis, but surgery and assisted reproductive techniques such as intrauterine insemination (IUI) and IVF can improve the odds. Most hormonal treatments prevent pregnancy while you take them. If fertility is a priority, raise it early with a reproductive endocrinologist so treatment can be planned around it.

Are hormonal treatments safe to take long term?

Many hormonal options, such as combined contraceptives and progestins, are designed for long-term use, but suitability and side effects differ by person and by medication. GnRH medicines are time-limited: FDA labels cap elagolix at 24 months on the lower dose and relugolix combination therapy at 24 months, because of bone loss. GnRH agonists are usually paired with add-back therapy. All of these need ongoing medical supervision to balance benefits against risks.

What is the first-line treatment for endometriosis?

First-line treatment for endometriosis is pain relief with NSAIDs such as ibuprofen or naproxen, combined with hormonal therapy, usually a combined hormonal contraceptive or a progestin such as dienogest or a levonorgestrel IUD. ESHRE (2022) and NICE (NG73) both support starting this on symptoms and imaging without diagnostic surgery. GnRH antagonists such as elagolix, and laparoscopic surgery, are usually considered when first-line care does not control pain or when fertility is the goal.

Does stem cell therapy work for endometriosis?

There is no robust human evidence that stem cell therapy treats endometriosis, and the FDA has not approved any stem cell product for it. Research on stem cells in endometriosis is mostly laboratory and animal work. Clinics that offer stem cells or platelet-rich plasma (PRP) for endometriosis are offering an unapproved, cash-pay treatment. If you are considering one, ask for the published human data and check whether the treatment is part of a registered trial on ClinicalTrials.gov.

Related reading

• PCOS: A Complete Guide to Symptoms, Diagnosis, and Management
• Perimenopause: What to Expect and How to Manage It
• IBS symptoms in women and how they overlap with pelvic conditions

This article is for education only and is not medical advice. Endometriosis varies widely from person to person, and prescription treatments require medical supervision. Please speak with a qualified healthcare professional about diagnosis and treatment decisions that are right for you.

More on women’s hormonal health

• HRT for women: benefits, risks, and the evidence
• the complete menopause guide