Navigating the Uncertainty: Understanding Cancer Remission, NED, and MRD with Confidence
- M.Richman M.D.
- Apr 2
- 3 min read
One of the most pressing questions after surgery or treatment for cancer is often, “Did we get it all? Am I cured?” Answering this is complicated. The journey to understanding one’s cancer status involves more than just a simple yes or no. How we discuss these concepts is critical, as misunderstandings can lead to unnecessary worry. It is essential to clarify these terms and their implications for each patient.
By understanding the differences between "cure," "remission," "NED," and "MRD," patients can feel more empowered and less anxious, enhancing their overall treatment experience. Below is a guide that simplifies these important concepts.
Cure
When I say a patient is "cured," I believe that the cancer is gone and has a low likelihood of returning. For many cancers, reaching a milestone of five years without recurrence often leads me to confidently use the term "cured." For example, according to the American Cancer Society, approximately 90% of patients with certain localized breast cancers achieve this status within five years.
However, not all cancers are alike. Some types, like estrogen receptor-positive breast cancer, can come back years later. Thus, while "cured" is a term filled with hope, it must be considered in the context of individual patient experiences and cancer types.
Remission
The term "remission" refers to a significant improvement in a patient’s health following treatment. When I inform patients they are in remission, it means the cancer has either stabilized or decreased significantly and is no longer an immediate threat.
In the realm of remission, two important classifications exist: complete remission and partial remission.
Complete Remission
Complete remission is declared when no cancer can be detected through scans or physical examinations. This outcome is a positive milestone and a time for celebration.
Monitoring is crucial even after achieving complete remission. In fact, studies show that regular follow-up scans can reduce the risk of missed recurrences by up to 30%. A well-structured plan for continued care is vital to maintain this status over time.
Partial Remission
Partial remission indicates that while some cancer remains, it has shrunk or become less active. This outcome is still optimistic since it shows that treatment is working effectively.
Both complete and partial remissions are encouraging signs, serving as important markers in the recovery journey. Awareness of these distinctions can help in planning future treatments and managing expectations.
NED (No Evidence of Disease)
NED, or No Evidence of Disease, means that all tests—scans, blood tests, and physical exams—show no signs of cancer at that time.
Receiving this status is a moment of hope. However, it’s essential to recognize that being NED does not guarantee that cancer will not return. Ongoing monitoring is crucial, as 20% of patients may still experience recurrence even after achieving NED.
MRD (Minimal Residual Disease)
Minimal Residual Disease is a newer concept in oncology. Even when scans appear clear, sensitive blood tests can detect tiny amounts of cancer DNA known as circulating tumor DNA (ctDNA).
Tracking MRD is essential because identifying even small traces of cancer can help catch a recurrence at its earliest stages. Recent studies have shown that MRD monitoring can reduce the likelihood of relapse by 40% in some patient populations.
The Role of Statistics
While statistics can offer insight, I often prefer not to dwell on them during consultations. Each patient's experience is unique, and individual reactions to treatment cannot be captured simply through numbers.
However, some patients find it helpful to understand statistical contexts as they navigate their treatment. Numbers, such as an 85% five-year survival rate for stage II colon cancer, can help clarify discussions about remission or future treatment plans.
Embracing the Cancer Journey
Understanding cancer terms like cure, remission, NED, and MRD is crucial for patients and their loved ones. These terms reflect not only medical definitions but also the complex emotions surrounding healing.
By maintaining an open dialogue, we can demystify these concepts and empower patients to take charge of their health journeys. Knowledge is a powerful tool that can ease anxiety and promote a positive outlook as patients navigate their ongoing treatment.
Let’s continue to share openly about our cancer journeys. It is not just about the facts but about understanding our path forward and supporting each other in this journey.

By framing discussions around clarity and reassurance, we can change the uncertainty associated with a cancer diagnosis into a collective understanding that fosters healing and hope.
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