Early Signs of Skin Cancer: What Every Patient Should Watch Out For in 2025

Skin cancer remains one of the most common forms of cancer worldwide. With increased sun exposure, environmental factors, and evolving lifestyle habits, the need for awareness and early detection has never been more crucial. As we enter 2025, healthcare professionals continue to stress the importance of recognising the early warning signs of skin cancer, which can drastically improve outcomes when detected early.

According to renowned dermatologist Dr Shaun Segal, “Early detection saves lives. The sooner skin cancer is identified and treated, the better the prognosis.” Let’s explore the early signs of skin cancer you should watch out for in 2025.

Understanding Skin Cancer

Skin cancer occurs when skin cells grow uncontrollably due to DNA damage, often caused by ultraviolet (UV) radiation from the sun or tanning beds. There are several types of skin cancer, but the three most common include:

• Basal cell carcinoma (BCC)
  
  
• Squamous cell carcinoma (SCC)
  
  
• Melanoma
  
  

Each type presents differently, and recognizing these differences can help with early detection.

1. Changes in Moles and Spots: The ABCDE Rule

One of the most reliable ways to detect potential melanoma early is by following the ABCDE rule:

• A – Asymmetry: One half of the mole or spot doesn’t match the other half.
  
  
• B – Border: Irregular, scalloped, or poorly defined edges.
  
  
• C – Color: Multiple colors or uneven color distribution, such as varying shades of brown, black, or even red, white, or blue.
  
  
• D – Diameter: Greater than 6mm (about the size of a pencil eraser), although melanomas can be smaller when detected early.
  
  
• E – Evolving: Any change in size, shape, color, elevation, or symptoms like itching or bleeding.
  
  

If you notice any of these changes in a mole, it’s essential to get it examined by a dermatologist.

Also Read: Top 5 Skin Cancer Treatment Options in 2025: What Patients Need to Kno

2. Persistent Itching or Pain in a Lesion

While many skin issues can cause itching, persistent irritation or discomfort in a specific spot may be a red flag. Dr Shaun Segal notes that itching, tenderness, or pain, especially in a mole or previously unremarkable area, could be an early sign of skin cancer. These symptoms might precede visual changes, making them important to report to a healthcare provider.

3. A Sore That Doesn’t Heal

Non-healing sores—particularly those that bleed, crust over, and return—are hallmark signs of basal cell carcinoma or squamous cell carcinoma. If a spot remains open for more than three weeks, especially in sun-exposed areas like the face, ears, neck, or hands, it’s advisable to seek a medical evaluation.

4. Shiny or Pearly Bumps

A shiny, translucent bump that looks like a pearl or a waxy patch might indicate basal cell carcinoma. These often appear on the face, scalp, or neck and may look like small pimples that don’t go away. Over time, they might ulcerate or develop a central depression.

5. Red, Scaly Patches

A persistent red, rough, or scaly patch of skin, especially in areas frequently exposed to the sun, can suggest squamous cell carcinoma. These patches may feel tender, bleed easily, or crust over. Unlike eczema or psoriasis, they don’t typically respond to moisturizers or steroid creams.

6. Dark Streaks Under Nails

Although rare, melanoma can develop under the nails, especially in people with darker skin tones. Look out for dark brown or black lines on the fingernails or toenails that are not caused by injury. Any pigment changes under the nail should be examined, as subungual melanoma can be easily overlooked.

Recommended Reading: Skin Cancer Warning Signs: How to Spot Symptoms Early in 2025

7. New Growths or Lumps

A new growth that looks different from other spots on your skin—or stands out from the rest—could be cause for concern. According to Dr Shaun Segal, “ugly duckling spots”, or moles that don’t match the rest of your moles, are often overlooked but may indicate early melanoma.

8. Bleeding or Oozing Spots

A mole or spot that bleeds, oozes, or forms a crust without any apparent injury should raise red flags. Even a spot that bleeds slightly when touched or washed can indicate a deeper problem. Keep an eye on any wound-like lesion that heals and returns repeatedly.

9. Rapid Changes in Appearance

If a mole or spot grows quickly, becomes more raised, or changes in texture or color over a short period, it should be examined. Speedy changes are more typical in aggressive forms of skin cancer, including melanoma, and prompt diagnosis is key to treatment success.

10. Pigmented Lesions in Unusual Places

Melanoma can sometimes appear in unexpected areas, such as the palms of the hands, soles of the feet, genitals, or inside the mouth. These are more common in individuals with darker skin tones and can be mistaken for harmless skin changes.

Also Read: Advanced Skin Cancer Treatments: What Top Doctors Are Recommending in 2025

Why 2025 Demands Even More Vigilance

Environmental factors like increased UV exposure, climate changes, and ozone depletion have led to a higher risk of skin cancer globally. In 2025, people are spending more time outdoors, often without adequate sun protection, increasing their exposure to harmful UV rays.

Moreover, with high-definition cameras and teledermatology now more accessible, patients are more empowered to document and share suspicious changes with their dermatologists. Dr Shaun Segal emphasizes that technology should support, not replace regular skin checks and professional evaluations.

Preventive Measures to Stay Ahead

While recognizing early signs is crucial, prevention remains the most effective strategy against skin cancer. Here are a few practical tips:

• Use broad-spectrum sunscreen (SPF 30 or higher) daily, even on cloudy days.
  
  
• Avoid tanning beds and prolonged sun exposure, especially between 10 a.m. and 4 p.m.
  
  
• Wear protective clothing, hats, and sunglasses.
  
  
• Perform monthly self-examinations of your skin using a mirror or smartphone photos.
  
  
• Visit a dermatologist annually, or more frequently if you have a personal or family history of skin cancer.
  
  

Final Thoughts

Skin cancer is highly treatable when caught early, yet it can be life-threatening if ignored. With increased awareness, better tools, and the expertise of professionals like Dr Shaun Segal, individuals can take control of their skin health in 2025. Don’t wait for symptoms to worsen—stay informed, stay protected, and schedule regular skin evaluations.

Your skin tells your story—make sure it’s a healthy one.