Diagnostics & Imaging

Explore how endometriosis is detected and distinguished: differential diagnosis, biomarkers, ultrasound, and MRI—what each test shows, when it’s used, and how results guide accurate, timely care.

Biomarkers Differential Diagnosis MRI Ultrasound

Overview

Reliable evaluation of endometriosis depends on understanding what each diagnostic tool reveals about the pelvis. Expert Ultrasound and MRI are the most valuable imaging methods, each offering unique strengths. Ultrasound is excellent for identifying endometriomas and certain deep lesions, while MRI provides a comprehensive map of structures affected by disease and is especially useful for planning treatment, including Excision Surgery when that is indicated.

Imaging also plays a critical role when symptoms resemble overlapping conditions such as IBS / IBD or Interstitial Cystitis. Differentiating these possibilities helps target the right therapeutic approach and prevents delays in care.

Even with advanced technology, many lesions—especially superficial or microscopic ones—remain invisible. A normal scan does not rule out endometriosis, nor does an abnormal scan determine the full extent of disease. Understanding what imaging can and cannot show leads to better expectations and more informed decisions about next steps in treatment and symptom management.

Common Questions

Why do I have painful urination and pelvic cramping between periods?
Painful urination and pelvic cramping between periods can happen when the bladder, uterus, pelvic floor, or nerves are irritated. Endometriosis can contribute, but bladder pain syndrome, pelvic floor overactivity, or adenomyosis can also cause these symptoms.
What should I ask at an adenomyosis surgery consult?
Ask about your treatment goals, what is driving your symptoms, and whether uterus-preserving surgery or hysterectomy is right for you. Also ask about expected symptom relief, whether the plan addresses endometriosis, the surgical approach, safety, recovery and follow-up.
How rare is endosalpingiosis?
Endosalpingiosis is generally considered uncommon, but how rare it is depends on who is studied and how it is found. Many cases are found incidentally when tissue is examined after surgery for other reasons, so it is likely underrecognized.
What is the AAGL endometriosis classification system?
The AAGL endometriosis classification system is a standardized way surgeons describe where endometriosis is found at surgery, how extensive it is, and how complex it appears. It is meant to better capture deeper disease that may affect surgical planning.