Skin concerns are one of the most common reasons adults see a primary care doctor. Most conditions are manageable, but certain changes deserve prompt attention.

Skin problems are extremely common at every adult age, ranging from mild irritation and rashes to chronic conditions like eczema and psoriasis, to changes in moles that need evaluation for skin cancer risk. Most skin concerns are not serious and respond well to simple treatment, but knowing which changes deserve a closer look is an important part of skin health.

Your primary care doctor can manage many common skin conditions directly and can refer you to a dermatologist for more complex or concerning findings. Regular skin self-checks are a simple habit that helps catch important changes early.

Common Rashes and Irritation

Contact dermatitis — a rash caused by direct contact with an irritant or allergen such as certain soaps, plants, jewelry, or fragrances — typically appears as redness, itching, and sometimes blistering in the area of contact. Identifying and avoiding the trigger, along with over-the-counter hydrocortisone cream, usually resolves it within one to two weeks.

Eczema (atopic dermatitis) causes dry, itchy, inflamed patches of skin, often in the creases of elbows and knees, and tends to flare with stress, dry weather, and certain irritants. Regular moisturizing, gentle skin care, and, for flares, prescription topical steroids are the mainstay of treatment.

Adult Acne

Acne is not just a teenage concern — many adults, particularly women, experience acne related to hormonal fluctuations, stress, certain medications, or skin care products. Adult acne often appears along the jawline and chin and may be more resistant to typical over-the-counter treatments than adolescent acne.

Treatment options range from over-the-counter benzoyl peroxide or salicylic acid to prescription topical retinoids, oral antibiotics, or hormonal treatments for women with a hormonal pattern. Picking or squeezing acne lesions increases the risk of scarring and should be avoided.

Moles and Skin Cancer Awareness

Most moles are entirely normal, but changes in an existing mole, or a new mole that looks different from your others, warrant evaluation. The “ABCDE” rule is a helpful guide: Asymmetry, Border irregularity, Color variation, Diameter larger than a pencil eraser, and Evolution (any change over time) are all reasons to have a mole examined.

Skin cancer, including melanoma, is highly treatable when caught early, which is why regular self-checks and periodic professional skin exams matter, especially for people with fair skin, many moles, significant sun exposure history, or a family history of skin cancer.

When to See a Doctor for a Skin Concern

A sore or lesion that does not heal within a few weeks, bleeds without clear cause, or changes in size, shape, or color should be evaluated, as should any mole meeting the ABCDE warning signs described above. A widespread rash, especially with fever or blistering, or a rash that is spreading rapidly, also warrants prompt evaluation.

For chronic conditions like eczema or psoriasis that are not responding to over-the-counter treatment, or for persistent adult acne, your primary care doctor can often start effective prescription treatment and refer to dermatology if a more specialized evaluation is needed.

Skin Self-Check Guide

Check all skin areas, including scalp, palms, soles, and between toes, periodically
Look for moles with Asymmetry, irregular Border, multiple Colors, large Diameter, or Evolution (the ABCDE rule)
Note any sore that has not healed within several weeks
Watch for a rash that is spreading, blistering, or accompanied by fever
Take photos of concerning spots to track changes over time
Use daily sunscreen and protective clothing to reduce future skin damage
Ask a partner or family member to check hard-to-see areas like your back

When to Contact a Clinician

Contact your doctor for a new or changing mole, a sore that has not healed in several weeks, a widespread or worsening rash, or acne or eczema that is not improving with over-the-counter treatment. A yearly skin check is reasonable for most adults, and more frequent checks for those at higher risk.

Questions to Ask at a Medical Visit

Could you evaluate this mole or spot I'm concerned about?
What is causing my rash, and what treatment do you recommend?
Would a dermatology referral be appropriate for my skin concern?
What skin care routine would you recommend for my skin type?
How often should I have a professional skin check given my risk factors?
Is my acne likely hormonal, and would prescription treatment help?

Main Takeaway

Most adult skin concerns are manageable with simple care, but new or changing moles, non-healing sores, and rapidly spreading or blistering rashes deserve prompt medical evaluation. Regular self-checks and sun protection are simple habits that meaningfully protect your skin health long-term.

References and Further Reading

American Academy of Dermatology — Skin cancer detection and the ABCDE rule
National Institute of Arthritis and Musculoskeletal and Skin Diseases — Eczema and contact dermatitis overview
American Academy of Dermatology — Adult acne causes and treatment
Skin Cancer Foundation — Self-examination guidelines

Understanding Common Skin Concerns in Adults