Referred Urgently for Suspected Cancer? What the 28-Day Standard Means and Which Scans You May Have

If your GP has sent an urgent referral for suspected cancer, the first thing to know is that it is a precaution built into the system, not a verdict. GPs are asked to refer people whose symptoms could, on the evidence, be caused by cancer, so that the possibility is checked quickly. NHS England's figures for its non-specific symptom pathways show that fewer than 7 in every 100 people referred to them receive a cancer diagnosis.

Many people still call this the two week wait. In England that standard was replaced from 1 October 2023 by the 28-day Faster Diagnosis Standard. This guide explains what the standard means, which scans tend to follow, and how to think about private scans while you wait.

What an urgent suspected cancer referral is

An urgent suspected cancer referral is a request from your GP (or, for some mouth problems, a dentist) for a hospital team to assess you quickly because your symptoms match criteria in NICE guideline NG12, Suspected cancer: recognition and referral, last updated in April 2026. NG12, which now calls it a suspected cancer pathway referral, sets out, symptom by symptom, who should be referred and who should first have tests arranged by the GP, such as an urgent, direct access chest X-ray or ultrasound scan.

The referral goes to the specialist team for the part of the body involved: for example a chest clinic, a breast clinic or a urology team. NHS England also runs non-specific symptom pathways for people whose symptoms do not point to one organ; NHS England says typical tests on those pathways include chest X-rays, CT scans, laboratory tests and endoscopy.

The 28-day Faster Diagnosis Standard explained

NHS England's cancer waiting times review set out the standards that replaced the old ones from 1 October 2023. The Faster Diagnosis Standard measures the wait from an urgent referral to being told whether or not you have cancer, with a maximum of 28 days. The 62-day standard covers the wait from an urgent referral to starting treatment, and the 31-day standard the wait from a decision to treat to the first treatment.

The 28 days cover the whole diagnostic stretch: the first appointment, any scans or samples, the specialist review of results, and the conversation in which you are told the outcome. Cancer Research UK says the target is for 80 per cent of people to be told within 28 days, and its analysis of NHS England's August 2026 figures, published on 12 October, puts performance at 78.6 per cent.

The Faster Diagnosis Standard is an England measure. Cancer Research UK explains that the 62-day and 31-day targets apply in England, Scotland and Northern Ireland, and that Wales runs a single 62-day suspected cancer pathway from the point cancer is first suspected.

What happens in the first days after referral

Expect the hospital to contact you quickly, often by phone or text as well as letter. Some hospitals use straight-to-test pathways, in which your first appointment is a scan or other test rather than a clinic visit; NHS faster diagnosis guidance for London GP practices refers to more patients being triaged into straight-to-test pathways. The hospital will tell you which applies to you.

Keep your phone on and reply promptly. If you have heard nothing within a week, ring the practice and ask them to check the referral was received. Tell the hospital early about a pacemaker, a metal implant or pregnancy.

Which scans and tests you might be sent for

The tests depend on the symptom. Common first steps are an X-ray (such as a chest X-ray for a persistent cough), an ultrasound scan (for example for lumps in the neck, armpit or groin, breast symptoms, or the abdomen and pelvis), a CT scan (chest, abdomen and pelvis) and an MRI scan (for example the prostate, the brain or soft tissues). For bowel and stomach symptoms the key test is often an endoscopy, and for breast symptoms a mammogram and ultrasound are commonly done at the same visit.

A scan rarely gives a final answer on its own. Cancer Research UK explains that a specialist doctor reports on scans, and that biopsy tissue is examined by a pathologist under a microscope. The NHS non-Hodgkin lymphoma pages, for example, say a biopsy is the main test and that further scans are used to see how far anything has spread, which is why some people have several scans in a short period. See what a CT scan shows in suspected lung cancer and how long scan results take.

Can a private scan speed things up?

This is the question many people ask in the first anxious week, and the honest answer is: usually not in a way that helps. The pathway's value is that the right test is chosen by the right specialist, read by a radiologist who knows what the team is looking for, and followed by a specialist review and, where needed, a biopsy. A scan you arrange yourself sits outside that chain.

Private imaging can be a reasonable part of the picture in two situations. Where a specialist has already asked for a particular scan and the local wait is long, ask the specialist's team whether a privately obtained scan would be accepted and in what format. And where you have been referred for a routine, non-urgent investigation, a different pathway with longer waits, a private scan may genuinely shorten the wait. In both cases speak to the clinician in charge of your care first, and make sure the report and images go back to them.

Remember that CT, X-ray and mammography require a referral at any UK clinic under IR(ME)R 2017, so most tests on a cancer pathway cannot be self-referred anyway. MRI and ultrasound can be self-referred at many clinics, but a self-referred scan still needs a clinician to act on the result. See whether you need a GP appointment before a scan.

Looking after yourself while you wait

Four weeks is a long time to carry uncertainty. Cancer Research UK suggests ringing the specialist's secretary or your specialist nurse if you have not heard anything after a couple of weeks. Write down your questions, take someone with you if you can, and ask who your point of contact is. If symptoms change or worsen, contact your GP; call 999 or go to A&E for anything sudden and severe; and use NHS 111 for urgent advice that is not an emergency.

FindScan is a directory of independent, regulated imaging clinics: you compare clinics and send an enquiry, and the clinic contacts you. We are not a healthcare provider and we are not part of any NHS cancer pathway. If you are on an urgent suspected cancer referral, follow it. If a clinician treating you has asked for a scan that is proving hard to get, you can compare clinics near you and send an enquiry; the clinic contacts you to confirm the referral it needs.