As a dermatologist with over a decade of experience in the field, I've seen a wide range of skin conditions, including various types of skin cancer. Skin cancer is one of the most common forms of cancer, and early detection can make a significant difference in treatment outcomes. Here are some of the first signs of skin cancer that one should be aware of:


1. Changes in Existing Moles: It's important to monitor moles for any changes in size, shape, or color. A mole that has been stable for years may suddenly begin to grow or change, which could be a sign of melanoma, the most serious type of skin cancer.


2. New Moles or Skin Growths: The appearance of a new mole or growth that was not there before can be a warning sign. Pay attention to any new spots that are irregular in shape, have uneven borders, or are a mix of colors.


3. A Sore That Doesn't Heal: As mentioned in the reference, sores or lesions on the skin that do not heal within a few weeks can be a sign of skin cancer. This is because cancerous cells can disrupt the normal healing process.


4. Spread of Pigment: If you notice that the pigment from a mole or spot is spreading into the surrounding skin, this can be a concerning sign. This is known as a "halo" of pigment and may indicate that the mole is becoming more aggressive.


5. Redness or Swelling: In addition to a mole itself, redness or a new swelling beyond the border of the mole can indicate inflammation or growth of cancerous cells.


6. Change in Sensation: If a mole or area of skin becomes itchy, tender, or painful, this can be a sign that something is amiss. It's the body's way of signaling that there may be an underlying issue.

7.
Asymmetrical Shape: One of the classic signs of melanoma is an asymmetrical shape. If one half of the mole does not mirror the other half, it can be a red flag.

8.
Border Irregularity: Moles with irregular, notched, or scalloped borders can be a sign of concern. The borders should be smooth and even.

9.
Color Variation: Moles that exhibit a variety of colors, such as shades of black, brown, or even red, white, or blue, can be indicative of melanoma.

10.
Diameter: Moles larger than 6 millimeters (about the size of a pencil eraser) should be monitored closely. While not all large moles are cancerous, size can be a factor in risk assessment.

1
1. Evolving Lesions: Any lesion that evolves or changes over time, especially if it grows rapidly, should be evaluated by a professional.

1
2. Unusual Symptoms: Bleeding, crusting, or oozing from a mole or lesion that is not due to injury can be a sign of skin cancer.

It's crucial to perform regular self-examinations and to consult with a dermatologist if you notice any of these signs. Early detection is key to successful treatment, and many forms of skin cancer are highly treatable when caught in the early stages.

read more >>

Other warning signs are:A sore that doesn't heal.Spread of pigment from the border of a spot into surrounding skin.Redness or a new swelling beyond the border of the mole.Change in sensation, such as itchiness, tenderness, or pain.More items...read more >>