What are the early symptoms and precursors of skin cancer

Early symptoms of skin cancer include abnormal patches on the skin, changes in the shape or color of moles, non-healing wounds, etc. These changes may become signs of cancer and should be checked by a doctor in time for early diagnosis and treatment.

1) Irregular patches or lesions on the skin

The most common early symptom of skin cancer is new, abnormal patches on the skin or changes in old patches. These patches are usually irregular in shape, have blurred edges, and may be uneven in color (such as black, brown, red, or skin color). They may start to itch or hurt slightly. This may be an early sign of basal cell carcinoma or squamous cell carcinoma, especially on areas of the body that are exposed to the sun for a long time, such as the face, back of the hands, and shoulders.

2) Changes in the size, color, or asymmetry of the mole

Certain skin cancers, such as melanoma, are often associated with moles. If the original mole becomes asymmetrical in shape, has jagged edges, changes from a single color to multiple colors, or is larger than 6 mm in diameter, you should be highly concerned. Moles may thicken or ulcerate. When self-examining your skin, use the "ABCDE rule" (A: asymmetry, B: border, C: color, D: diameter, E: change) to better identify high-risk moles.

3) Non-healing wounds or recurrent skin ulcers

Another early sign of skin cancer is a wound or stubborn ulcer that does not heal. These wounds or ulcers often break open and scab over again, then heal and reappear, lasting for months or even longer. The ulcer is often accompanied by a small amount of bleeding or exudate. Chronic skin damage sometimes gradually spreads and thickens, so you should be extra vigilant.

How to deal with early skin cancer symptoms

1. Check your skin regularly: Check your skin under bright light every month, paying special attention to areas that are difficult to monitor, such as the back and neck. Any color abnormalities or ulcers should be recorded directly.

2. Medical diagnosis: If you find the above symptoms, go to the dermatology or oncology department in time. The doctor can further clarify the pathology through dermoscopy, tissue biopsy, etc.

3. Sun protection to prevent and avoid repeated skin damage: Broad-spectrum sunscreen (SPF30+), sun hats, etc. can reduce UV exposure and avoid the use of chemicals that are highly irritating to the skin.

Early detection of skin cancer is crucial, and regular screening and good daily preventive habits can significantly reduce your risk. If you experience unexplained changes to your skin, consult a healthcare professional immediately and get a comprehensive examination.