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How to Spot the Early Signs of Skin Cancer: A Dermatologist's Guide

Jul 02, 2026
Skin cancer is the most common type of cancer in the United States, but it is also one of the most treatable when detected early. Recognizing the warning signs and scheduling regular skin exams with a dermatologist can make a significant difference.

At Salida Dermatology, our experienced team provides comprehensive skin cancer screenings and treatment for patients throughout Salida, CO, and Gunnison, CO, helping you protect your skin and catch concerns before they become more serious.

Why Early Detection Matters

When skin cancer is found in its earliest stages, treatment is often simpler, less invasive, and highly successful. Many forms of skin cancer develop gradually, making routine self-examinations and annual professional skin checks an important part of maintaining your overall health.

If you notice a new or changing spot on your skin, it's always best to have it evaluated by a board-certified dermatologist.

The ABCDE Rule: A Simple Way to Check Your Moles

One of the easiest ways to identify potential melanoma is by using the ABCDE Rule.

A – Asymmetry

One half of the mole or lesion does not match the other half in shape or appearance.

B – Border

Healthy moles typically have smooth, even borders. Be cautious of spots with irregular, jagged, blurred, or scalloped edges.

C – Color

A mole that contains multiple shades of brown, black, red, white, or blue may require further evaluation.

D – Diameter

While melanomas are often larger than 6 millimeters (about the size of a pencil eraser), some can be smaller. Any suspicious growth should be examined.

E – Evolving

Perhaps the most important warning sign is change. If a mole changes in size, shape, color, texture, or begins itching or bleeding, schedule an appointment with your dermatologist promptly.

Other Early Signs of Skin Cancer

Not every skin cancer looks like a dark mole. Other warning signs include:

  • A sore that doesn't heal within several weeks
  • A rough or scaly patch that persists
  • A pearly or shiny bump
  • A pink or red growth
  • A wart-like lesion that continues growing
  • A mole that suddenly becomes painful, itchy, or starts bleeding
  • A spot that looks noticeably different from your other moles (often called the "ugly duckling" sign)

If something doesn't seem right, trust your instincts and have it evaluated.

Understanding the Different Types of Skin Cancer

Basal Cell Carcinoma

Basal cell carcinoma is the most common type of skin cancer. It often appears as:

  • A shiny or pearly bump
  • A flesh-colored growth
  • A sore that repeatedly heals and returns

Although it usually grows slowly, prompt treatment helps prevent damage to surrounding tissue.

Squamous Cell Carcinoma

Squamous cell carcinoma commonly presents as:

  • A rough, scaly patch
  • A firm red bump
  • A sore that doesn't heal

Early treatment is important because this type of skin cancer can spread if left untreated.

Melanoma

Melanoma is the most serious form of skin cancer. It may develop from an existing mole or appear as a new dark spot on the skin. Because melanoma can spread quickly, early diagnosis is critical for the best possible outcome.

Why Colorado Residents Face a Higher Risk

Living in Salida and Gunnison, Colorado, offers incredible access to hiking, skiing, fishing, biking, and year-round outdoor recreation. However, Colorado's high elevation also means stronger ultraviolet (UV) radiation.

At higher altitudes, UV rays are more intense, increasing your risk of:

  • Sunburn
  • Premature skin aging
  • Sun damage
  • Skin cancer

Even during cooler months or cloudy days, UV exposure can still damage your skin.

How to Protect Your Skin

Reducing your risk of skin cancer starts with good sun protection habits.

We recommend:

  • Applying a broad-spectrum SPF 30 or higher sunscreen every day
  • Reapplying sunscreen every two hours when outdoors
  • Wearing wide-brimmed hats and UV-protective clothing
  • Seeking shade during peak sun hours between 10 a.m. and 4 p.m.
  • Wearing sunglasses with UV protection
  • Avoiding indoor tanning beds

These simple habits can significantly reduce cumulative sun damage over time.

Who Should Schedule a Skin Cancer Screening?

Everyone can benefit from routine skin examinations, but screenings are especially important if you:

  • Have fair skin or light-colored eyes
  • Spend significant time outdoors
  • Have a history of frequent sunburns
  • Have numerous moles
  • Have a personal or family history of skin cancer
  • Notice a new or changing spot on your skin

Even if you have no symptoms, annual skin checks allow dermatologists to identify suspicious lesions before they become more serious.

What Happens During a Skin Cancer Screening?

A full-body skin examination is quick, painless, and thorough.

During your appointment, your dermatologist will:

  • Examine your skin from head to toe
  • Evaluate moles and other lesions
  • Discuss any areas of concern
  • Recommend monitoring, biopsy, or treatment if necessary

Many skin cancers can be identified during these routine examinations, making them an essential part of preventive healthcare.

Schedule Your Skin Cancer Screening at Salida Dermatology

Early detection saves lives. If you've noticed a changing mole, a new skin growth, or it's simply time for your annual skin exam, the experienced team at Salida Dermatology is here to help.

We proudly provide comprehensive skin cancer screenings and dermatologic care for patients throughout Salida, CO, Gunnison, CO, and the surrounding communities.

To schedule your appointment, call 719-539-5338 or request an appointment online at https://www.salidadermatology.com/schedule-appointment.

Protect your skin today with expert care from the trusted team at Salida Dermatology.