Squamous cell carcinoma (SCC) is usually highly treatable, but it should not be left indefinitely. Unlike basal cell carcinoma, SCC can grow more quickly and has a greater, although still relatively low, risk of spreading. This guide explains how urgently squamous skin cancer treatment may be needed.

SCC Usually Needs Prompt Specialist Assessment

There is no single number of days or weeks that is safe for every squamous cell carcinoma. The appropriate timeline depends on the tumour’s size, location, depth, growth pattern and your individual health.

SCC generally grows faster than basal cell carcinoma. Although most SCCs remain localised, a small number can recur or spread to nearby lymph nodes or other parts of the body.

For this reason, suspected SCC is treated more urgently within UK referral pathways than most suspected BCCs. NICE guidance says people with suspected squamous cell carcinoma should enter the suspected cancer pathway so the diagnosis can be confirmed or ruled out promptly.

An urgent referral does not mean the cancer is necessarily advanced. It means SCC deserves timely assessment so your specialist can establish how risky the lesion is and plan appropriate squamous skin cancer treatment.

Some SCCs Need Faster Treatment Than Others

Many SCCs are considered low risk and can be cured successfully. However, certain features can make clinicians more concerned about continued growth or spread.

A tumour that is enlarging quickly, becoming deeper, repeatedly bleeding or failing to heal should be reviewed promptly. SCCs commonly appear as raised, rough or crusted areas and may develop an ulcer beneath the surface.

Location also matters. SCC commonly develops on sun-exposed areas such as the head, ears, lips, neck and backs of the hands. Tumours in anatomically sensitive areas can require more careful treatment because continued growth may affect nearby structures or make reconstruction more difficult.

People with weakened immune systems may also need particularly careful management. This includes some organ transplant recipients and people taking immunosuppressive medicines, as SCC can behave more aggressively in immunocompromised patients.

These factors help determine how quickly squamous skin cancer treatment should begin. Two SCCs that look similar on the surface may therefore have very different recommended treatment timelines.

Why You Should Not Delay Treatment Yourself

A short, medically planned wait is very different from deliberately postponing surgery for several months without discussing it with your specialist.

The main treatment for SCC is usually surgery. The cancer is removed together with an appropriate margin of surrounding skin, although Mohs surgery, radiotherapy or other approaches may be recommended in selected circumstances.

Waiting longer can allow the tumour to become larger or extend deeper. This may mean more tissue needs to be removed and could result in a larger wound or more complex reconstruction.

There is also a difference between SCC and BCC when considering delays. Cancer Research UK specifically notes that suspected BCC may sometimes wait several months because it commonly develops very slowly, while suspected SCC should receive specialist referral more urgently.

In England, current cancer waiting-time standards aim for treatment to begin within 31 days after you and your doctor agree the treatment plan, and within 62 days of an urgent suspected cancer referral. These are healthcare targets rather than a guarantee that every SCC can safely wait that long. Your own specialist’s recommendation should take priority.

Follow the Timeline Recommended for Your SCC

So, how long can you wait to have squamous cell carcinoma removed? There is no universal safe waiting period. Most SCCs are curable, but because they can grow more quickly than BCC and occasionally spread, you should not postpone recommended treatment without medical advice.

If your surgery is already scheduled, follow the timeline your specialist has provided. Contact the clinical team sooner if the lesion grows noticeably, bleeds more frequently, becomes painful, ulcerates or changes while you are waiting.

The appropriate squamous skin cancer treatment will depend on where the cancer is, how large and deep it is, whether it has spread and your general health. Surgery remains the main treatment for most people, with other approaches available when necessary.

If you have been diagnosed with SCC and are concerned about how long you are waiting, contact Dr Arif Aslam’s team for a specialist assessment. Understanding the individual risk of your skin cancer can help determine the right treatment and the appropriate timeframe for removing it.