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Skin changes worth checking by a dermatologist

11 May 2025

Skin Changes Worth Consulting a Dermatologist About – Don’t Ignore What Your Skin Is Telling You

The skin is the largest organ of the human body and often the first to signal that something may be wrong. While many skin changes are harmless, some may require urgent dermatological consultation – and in some cases, they can indicate serious conditions, including skin cancer.

In this article, we discuss which skin changes should prompt you to see a dermatologist, how they are diagnosed, and when it’s best not to delay your visit.

What are skin changes?

Skin changes refer to any visible abnormalities or alterations in the skin. These may appear as spots, lumps, nodules, blisters, warts, or moles. While many are benign (e.g. seborrheic warts, lipomas, or cysts), others may indicate infections, chronic diseases, or even skin cancers such as melanoma or squamous cell carcinoma.

Skin changes that should be checked by a dermatologist

Below are the most common types of skin changes that should not be ignored — even if they’re painless or have been present for a while.

1. Moles that change shape, color, or size

Moles (also called nevi) are common and usually harmless. However, if you notice any of the following changes, it’s time to see a dermatologist:

A – Asymmetry,
B – Border irregularity,
C – Color variation,
D – Diameter larger than 6 mm,
E – Evolving over time.

These changes could indicate melanoma, the most dangerous type of skin cancer.

2. Rapidly growing lumps or warts

If you notice a bump or wart that is growing quickly, has an irregular shape, or bleeds easily, it could be a sign of basal cell carcinoma or squamous cell carcinoma, especially in people over 50.

3. Chronic ulcers or wounds that won’t heal

A non-healing wound lasting more than a few weeks should be evaluated by a dermatologist. It may indicate skin cancer, chronic infection, or vascular disease.

4. Scaly or itchy patches

Dry, red, flaky patches may be symptoms of:

Psoriasis,
Eczema,
Lichen planus,
Fungal infections,
Vitiligo or pityriasis versicolor.

Proper diagnosis may require mycological tests or a skin biopsy.

5. Sudden appearance of multiple new lesions

The sudden emergence of many moles, warts, or other lesions can be a sign of viral infections (e.g. HPV), hormonal changes, or in rare cases, internal malignancies.

6. Skin changes in children

In children, parents should seek medical advice when they notice:

Large congenital moles,
Recurrent rashes,
Scaling or oozing lesions.

At Mediss Medical, we also offer pediatric dermatology consultations.

How does a dermatological examination work?

During a dermatology visit, the doctor will examine your skin visually and may use a dermatoscope – a specialized magnifying tool. If necessary, additional tests may include:

Histopathology (skin biopsy),
Microbiological swabs,
Videodermoscopy (digital mole mapping).

Skin lesion removal – when is it needed?

Benign lesions that are irritated, cosmetically unappealing, or frequently injured can be removed surgically, with a laser, or using cryotherapy (liquid nitrogen). Suspicious or potentially cancerous lesions should be removed with safety margins and sent for histopathological examination.

At Mediss Medical, we perform a range of dermato-surgical procedures that are safe, effective, and minimally invasive.

Why regular skin checks are important

Preventive skin screenings can be life-saving, particularly when it comes to melanoma. Early detection significantly increases the chances of a complete cure. We recommend dermatoscopic screening at least once a year, or more often if you have numerous moles or a family history of skin cancer.

Conclusion – monitor your skin and act early

Your skin reflects your overall health — don’t ignore warning signs. If you notice any suspicious lesions, new or changing moles, non-healing sores, or anything unusual on your skin, book a consultation with a dermatologist. At Mediss Medical, we provide full dermatological diagnostics and treatment, including removal of skin lesions and skin cancer screening.