Endometriosis: Symptoms, Diagnosis, and Treatment Options

Endometriosis is a condition where tissue similar to the lining of the uterus grows in places it shouldn't — on the ovaries, fallopian tubes, the tissue lining the pelvis, and sometimes beyond. It affects roughly 10% of women of reproductive age, and the average time from symptom onset to diagnosis is about seven years.

That diagnostic delay isn't because the symptoms are subtle. It's because the symptoms are frequently dismissed — by patients themselves, by family members, and sometimes by physicians.

What Endometriosis Actually Is

The endometrium is the tissue that lines the inside of the uterus. Each menstrual cycle, it thickens in preparation for a potential pregnancy, and if no pregnancy occurs, it sheds — that's your period.

In endometriosis, tissue similar to the endometrium grows outside the uterus. These implants respond to the same hormonal signals — they thicken, break down, and bleed with each cycle. But because they're not inside the uterus, the blood and tissue have no way to exit the body. This leads to inflammation, scarring, adhesions (bands of fibrous tissue that can bind organs together), and pain.

Symptoms That Should Raise Suspicion

Severe period pain (dysmenorrhea)

Some cramping during periods is common. But pain that prevents you from going to work or school, that doesn't respond to over-the-counter painkillers, that has you in the fetal position on the bathroom floor — that's not normal, regardless of what anyone has told you. Endometriosis pain often starts one to two days before the period and continues throughout.

Pain during or after sex (dyspareunia)

Deep pain during intercourse, particularly with penetration, is a hallmark of endometriosis — especially when implants are located behind the uterus or on the uterosacral ligaments. This is different from entry pain, which has other causes.

Pain with bowel movements or urination

Particularly during your period. Endometriosis can affect the bowel and bladder, causing pain, bloating, diarrhea, constipation, or even blood in stool or urine around menstruation.

Chronic pelvic pain

Pain that isn't limited to your period — a persistent, dull ache in the pelvis that may worsen around menstruation but never fully resolves.

Heavy periods or bleeding between periods

Not universal, but some women with endometriosis experience heavier menstrual bleeding or spotting between cycles.

Difficulty getting pregnant

Endometriosis is found in 25-50% of women with infertility. It can affect fertility through inflammation, anatomical distortion (adhesions affecting the tubes and ovaries), and effects on egg quality and implantation.

Fatigue

Often underappreciated. Chronic inflammation and pain are exhausting, and many women with endometriosis report persistent fatigue that goes beyond what their sleep or activity levels would explain.

Why Diagnosis Takes So Long

Several factors contribute to the delay:

• Normalization of period pain — "bad periods" are culturally expected, and many women are told their pain is normal or that they have a low pain tolerance
• Symptom overlap — endometriosis symptoms overlap with IBS, UTIs, ovarian cysts, and other conditions, leading to misdiagnosis
• Normal imaging — endometriosis often doesn't show up on standard ultrasound, leading to false reassurance. MRI can sometimes detect deeper implants, but even it can miss superficial disease
• Definitive diagnosis requires surgery — laparoscopy (minimally invasive surgery) with tissue biopsy is technically the gold standard for diagnosis, though clinical diagnosis based on symptoms is increasingly accepted

Treatment Approaches

There's no cure for endometriosis, but symptoms can be managed effectively.

Hormonal therapy

The goal is to suppress the hormonal cycling that drives endometrial implants. Options include:

• Combined oral contraceptives (continuous use, skipping the placebo week, to eliminate periods)
• Progestin-only options (oral norethindrone, the hormonal IUD, or depot medroxyprogesterone)
• GnRH agonists or antagonists (like leuprolide or elagolix), which create a temporary low-estrogen state

Pain management

NSAIDs (ibuprofen, naproxen) taken before and during expected pain can help with milder symptoms. For more severe pain, a multimodal approach may be needed — potentially involving nerve-targeting medications, pelvic floor physical therapy, and sometimes targeted nerve blocks.

Surgery

Laparoscopic excision of endometriosis implants can provide significant pain relief and improve fertility. The skill of the surgeon matters enormously — excision (cutting out) of implants is generally preferred over ablation (burning the surface), as it's more thorough.

Surgery isn't permanent — endometriosis can recur — but it can provide meaningful relief, especially when combined with hormonal therapy afterward.

Fertility treatment

For women with endometriosis who are trying to conceive, the approach depends on severity. Milder cases may respond to ovulation induction and timed intercourse or IUI. More severe cases, particularly with anatomical distortion, often benefit from IVF.

Living With Endometriosis

Endometriosis is a chronic condition that requires ongoing management. Beyond medical treatment:

• Pelvic floor physical therapy can address the muscle tension and dysfunction that often accompanies chronic pelvic pain
• Anti-inflammatory dietary patterns may help some women, though the evidence is still emerging
• Mental health support matters — chronic pain conditions take a real toll on mood, relationships, and quality of life
• Advocacy — if your symptoms are being dismissed, seek a second opinion. Your pain is real and deserves investigation

When to Talk to a Doctor

If you have painful periods that interfere with your life, pain with sex, chronic pelvic pain, or difficulty conceiving — especially if you've been told "it's just bad periods" — it's worth a real evaluation.

Ready to talk to a real doctor? Get started with Coral Health today.