Skin cancer: Prevention, signs, diagnosis and treatment in London

Understanding skin cancer

Skin cancer represents the abnormal growth of skin cells, most often triggered by ultraviolet (UV) radiation from the sun or indoor tanning. The three most common types are basal cell carcinoma, squamous cell carcinoma, and melanoma. Basal cell and squamous cell cancers tend to grow slowly and are highly curable when caught early. Melanoma is less common but more aggressive and capable of spreading to other organs if not treated promptly.

At Skinhorizon Clinic in London, we emphasize precise diagnosis and personalized care. Regular skin checks, especially for those with fair skin, a history of sunburns, numerous moles, or significant sun exposure, can identify suspicious changes early. Our consultant dermatologists tailor surveillance and prevention plans to your skin type, lifestyle, and risk factors.

Preventive steps matter. Daily sunscreen with broad-spectrum protection (SPF 30 or higher), protective clothing, and seeking shade during peak sun hours reduce UV exposure. For many patients, simple changes add up over time to lower lifetime risk. If you notice a new growth, a change in an existing mole, or a lesion that bleeds or itches, book a professional evaluation promptly.

For broader context, consider reading about sun damage and prevention topics on our sun damage page, and learn about actinic keratosis on our AK information page. If a lesion appears precancerous or cancerous, explore how we approach these lesions on our dedicated resources treatments for precancerous and cancerous lesions.

Risk factors and prevention

Risk factors for skin cancer include fair or freckled skin, a history of sunburns, significant sun exposure over a lifetime, use of tanning beds, a family history of skin cancer, and older age. People with these factors should be especially vigilant with skin monitoring and protective strategies. A previous skin cancer raises the risk of a new primary tumor, so ongoing surveillance is essential.

Prevention focuses on minimizing UV injury and encouraging early detection. Practical steps include applying broad-spectrum sunscreen daily, wearing wide-brimmed hats and UV-blocking sunglasses, and using clothing that covers vulnerable areas. Seek shade during midday sun, avoid tanning beds, and perform monthly self-checks to spot new or changing lesions. Regular professional skin examinations complement home monitoring, particularly for individuals with many moles or a history of skin cancer.

In addition to sun protection, lifestyle choices such as avoiding smoking and maintaining overall skin health can support prevention. If you have a suspicious lesion or are unsure about a mole, a dermatologist can provide clarity and guidance on next steps, including diagnostic biopsy if indicated.

Recognising signs and diagnosis

Early detection hinges on recognising warning signs. Look for new growths, moles that change in size, shape, color, or texture, and lesions that crust, ooze, or heal slowly. The ABCDE framework is a helpful guide for melanoma screening: Asymmetry, Border irregularity, Color variation, Diameter larger than a pencil eraser, and Evolution over time. Any lesion that raises concern should be assessed by a dermatology specialist without delay.

During an examination, clinicians may perform dermoscopy to examine pigment patterns more clearly. If a lesion looks suspicious, a skin biopsy is the definitive test to determine the type of skin cancer and guide treatment planning. For complex cases or when cancer is suspected to have spread, additional imaging and lymph node assessment may be used to stage the disease and tailor the approach.

Education around self-examination and professional assessment is central to Skinhorizon’s approach. We encourage patients to bring photos or notes about lesion history to consultations, which can improve tracking over time. If you want more context on early changes to watch for, visit our sun damage and AK resources linked above and consult with our team for personalised assessment.

Treatment options and outcomes

Treatment decisions depend on cancer type, size, location, and stage. For many non-melanoma skin cancers (basal and squamous cell carcinomas), surgical removal with clear margins is highly effective. Mohs micrographic surgery offers the highest cure rates for tricky facial or eyelid cancers by examining margins in real time during the operation. For actinic keratoses and other precancerous lesions, cryotherapy, topical creams, or light-based therapies can be employed to prevent progression.

Melanoma and some advanced non-melanoma cancers may require additional interventions. Depending on the case, options include sentinel node biopsy, radiotherapy, immune therapies, targeted therapies, or combination regimens. The goal is complete clearance where possible, and if cancer has spread, systemic therapies aim to control disease and extend quality of life. Our specialists explain the rationale for each option, including benefits, potential side effects, and expected recovery timelines.

Follow-up care is crucial. Regular check-ups monitor for recurrence or new primaries, and imaging may be indicated in selected situations. Lifestyle adjustments and sun-protection strategies continue to play a role after treatment, supporting long-term outcomes. If you’d like to review specific treatment pathways, our team can tailor a plan that aligns with your medical history and personal preferences, including referrals to allied services when needed.

Ongoing care and living with skin cancer

Living with a history of skin cancer involves balancing effective treatment with maintaining daily life. We emphasise clear communication, shared decision-making, and practical support to navigate follow-up schedules, surveillance, and potential late effects of therapy. Emotional and psychological well-being is an important part of recovery, and we provide access to resources and counselling if needed.

Patients should continue monthly self-checks and annual professional skin examinations, especially if there are ongoing risk factors or prior cancers. It is natural to have questions about prognosis and long-term plans. Our consultants tailor a surveillance strategy that reflects your cancer type, stage, and response to treatment. We also provide guidance on sun protection, skin care, and healthy lifestyle choices to reduce future risk.

Ready to discuss your situation with a specialist? Book Dermatology Consultation to start a personalized assessment and learn about options that fit your needs. You can schedule at https://book-now.at/skinhorizon/ and begin your path toward informed, proactive skin health.