Active surveillance and watchful waiting
Active surveillance and watchful waiting are the most common treatment options recommended when you are first diagnosed with prostate cancer.
However, if you’re not satisfied and want to take action on your prostate cancer, talk to us for a second opinion.
At The Focal Therapy Clinic, our expert team of clinical specialists are experienced with all current prostate cancer treatments. They can help you understand all your options and make a decision that you can be confident in.

“Active surveillance may be highly effective in monitoring cancer, but for me, it was doing my head in — constantly worrying, not sleeping properly, and with my mind taking me to some very dark places.”
Perry Letcher
The Focal Therapy Clinic patient
How it works
If your cancer is very early, or growing very slowly, your doctor might suggest active surveillance or watchful waiting.
Active surveillance
Active surveillance involves regular scans and tests to monitor the progression of your cancer, if it’s caught early or looks like it’s growing so slowly you might not need treatment. You will have:
- Regular multiparametric MRIs (mpMRIs), also known as prostate MRIs, every 12-18 months
- PSA blood tests every 3-4 months
Previously, if you were on active surveillance, you would also have regular prostate biopsies. However, advances in MRI technology have reduced the need for this. However, if your cancer changes or pgoresses, you might need a biopsy to diagnose it for definite.
Watchful waiting
Watchful waiting also involves monitoring your cancer, but only using PSA tests and regular GP visits to check your symptoms. You’ll be recommended watchful waiting if:
- You are older and don’t have any symptoms
- You have another medical condition that might make prostate cancer treatment difficult
- You would rather avoid any treatment and its side effects
Suitability
You are most likely to be recommended active surveillance if you have early, or localised, prostate cancer or locally advanced cancer, and you’re older and overall less fit and healthy.
However, if you’re not happy with the risks posed by your prostate cancer, including the anxiety of having a cancer diagnosis, other treatment options could be better for you.
Success rates
Active surveillance has been shown to be safe and effective in reducing treatment for people with early-stage prostate cancer. You have roughly the same chance of living for 10 years after your diagnosis as you do if you choose to have surgery or radiotherapy.
Side effects
If your cancer changes or you experience new side effects, you might need additional tests, such as biopsy. You may also need more radical treatment than focal therapy.
For some people, their cancer diagnosis can cause stress and anxiety, which impacts their overall health. You might decide that you’d prefer to risk an early treatment intervention than your cancer growing whilst you aren’t having treatment.
If you’re on active surveillance or watchful waiting and would like to explore your other treatment options:
contact us today
Any questions?
If you’ve got any questions about your prostate cancer diagnosis or want to know more about HIFU treatment or NanoKnife treatment, don’t hesitate to get in touch with our friendly, knowledgeable team.
Contact the team
Frequently asked questions
“If you’re on active surveillance, it typically means your prostate cancer is low-risk or low-level intermediate-risk. This suggests that it is not an immediate threat, it may or may not become a problem later in life, and regular monitoring will help detect any concerning changes.”
Active surveillance allows you to avoid immediate treatment and its potential side effects, while ensuring early intervention is possible if the cancer shows signs of progression. It’s particularly suitable for men with early or localised prostate cancer, Gleason score ≤6, PSA <10–15 ng/ml, and low-risk disease characteristics.
For many men, active surveillance is reassuring, knowing that high-quality monitoring with MRI scans and PSA tests will detect any concerning changes early.
“Many patients come to me for a second opinion after being placed on active surveillance. When I assess their case, I ask: Why was the cancer found if it doesn’t need treatment? In my practice, I only diagnose cancers that are visible on an MRI scan. If cancer is visible, that means we can target it with focal therapy (e.g., HIFU or NanoKnife). If it can be targeted and treated, why wait?”
Mr. Doherty explains that if cancer is not visible on MRI, active surveillance may be reasonable because the cancer is likely clinically insignificant. However, if the cancer is visible on MRI, early focal therapy may be a better option than waiting for signs of progression.
Active surveillance remains a valid choice, but some men prefer to treat visible lesions early with minimally invasive focal therapy rather than monitor a known cancer. This is a personal decision that should be made with your consultant after considering your cancer characteristics, anxiety level about living with untreated cancer, preference for early intervention vs monitoring, and the availability of minimally invasive treatment options.
“If you’ve been told you can have active surveillance, that is certainly an option. However, studies show that about one-third to two-thirds of men on active surveillance eventually require treatment.”
Mr. Laniado further explains:
“When considering active surveillance, think about the impact of treating cancer early versus delaying treatment. If we deliver focal therapy early, we can target a smaller part of the prostate with a minimal margin. This allows for more reliable cancer eradication while preserving almost all of the healthy prostate tissue. If the cancer progresses and becomes larger, more of the prostate will need treatment, reducing the amount of healthy tissue that can be preserved.”
- 33–66% of men on active surveillance eventually require treatment.
- 20–25% choose treatment within 2 years due to anxiety over PSA tests and ongoing monitoring.
- Early focal therapy can treat a smaller area, preserving more healthy tissue.
- Delayed treatment may require more extensive intervention if cancer progresses.
The decision between active surveillance and early focal therapy should consider your cancer characteristics, personal anxiety levels, and quality of life preferences.
“Active surveillance is typically based on European Association of Urology (EAU) guidelines in the UK. The standard monitoring approach includes PSA blood tests every 3 to 6 months, MRI scans once a year, and prostate biopsies if MRI scans show any changes.”
- Regular PSA Tests: Every 3–6 months to monitor for significant increases indicating possible progression.
- Annual MRI Scans: Multiparametric MRI (mpMRI) every 12–18 months to track lesion changes or identify new areas.
- Biopsies When Needed: Required if MRI shows suspicious changes to assess Gleason score increases.
Dr. Mikropoulos notes: “Being on active surveillance means that it is very likely you will need another biopsy within the next two years. This follow-up biopsy helps monitor any changes in your prostate cancer and ensures that treatment decisions remain based on the most up-to-date information.”
Treatment is recommended if monitoring reveals significant PSA rise, Gleason score increase, MRI changes, or if patient preference shifts due to anxiety or quality of life. High-quality MRI scans and experienced radiologists are essential for safe monitoring.
“Active surveillance is typically based on European Association of Urology (EAU) guidelines in the UK. The standard monitoring approach includes PSA blood tests every 3 to 6 months, MRI scans once a year, and prostate biopsies if MRI scans show any changes.”
- PSA blood tests every 3–6 months
- MRI scans annually (every 12–18 months)
- Biopsies when MRI shows changes, typically within first 2 years
This frequent testing schedule ensures any concerning changes are caught early, allowing for timely intervention. However, some men find the ongoing tests and appointments stressful, which is worth considering when choosing between active surveillance and early focal therapy.
“Being on active surveillance means that it is very likely you will need another biopsy within the next two years. This follow-up biopsy helps monitor any changes in your prostate cancer and ensures that treatment decisions remain based on the most up-to-date information.”
Biopsies are typically required when MRI scans show suspicious changes, PSA levels rise significantly, or when confirmatory biopsies are due.
Mr. Marc Laniado (Consultant Urologist) notes:
“One of the biggest drawbacks of active surveillance is the need for regular PSA tests, frequent MRI scans, and repeated prostate biopsies, which can cause discomfort and potential side effects. In some places, repeated biopsies are required by protocol, meaning that all patients must undergo them, even if their MRI and PSA results remain stable.”
Some men find repeated biopsies uncomfortable or anxiety-provoking, which may influence their decision between ongoing active surveillance and early focal therapy.



