When Should You See a Dermatologist?

Some skin problems clear up on their own, but others should be checked out by a doctor.

It's easy to ignore a spot on your skin or assume an itchy rash will eventually go away, and often that's exactly what happens. But sometimes a skin change is your body's way of telling you that something needs attention.

While you don't need an appointment for every pimple or patch of dry skin, certain symptoms are worth getting checked by a dermatologist, a doctor who specializes in conditions affecting the skin. Knowing when to make an appointment can help you get the right treatment and may even help catch skin cancer early.

A mole or spot has changed

Don't wait to see a dermatologist if you notice a new or changing growth, a sore that won't heal or a spot that repeatedly bleeds or crusts.

When checking moles, remember the ABCDE rule. Look for asymmetry, an irregular border, uneven color, a diameter larger than a pea or a spot that is evolving, meaning it changes over time. Skin cancer doesn't always follow these rules, however. If something looks different from the rest of your spots or just doesn't seem right, have it checked.

A rash won't go away

Many rashes are caused by minor irritation and disappear within a few days. But a rash that keeps coming back, spreads or doesn't improve with basic care may need medical attention.

A dermatologist can determine whether eczema, psoriasis, an allergy, an infection or another condition is causing the problem. Make an appointment sooner if the rash is painful, keeps you awake or interferes with your daily activities.

Your acne isn't getting better

Over-the-counter products can often control mild acne. If you've been using them for several weeks without improvement, it may be time for professional help. See a dermatologist if your acne is severe, painful or leaving scars or dark spots. Prescription treatments may help clear your skin and reduce the chance of permanent scarring.

You notice changes in your hair or nails

In addition to treating skin conditions, dermatologists can help with unexplained hair loss, thinning hair and nail changes. Schedule an appointment if you suddenly lose a lot of hair, develop bald patches or notice nails that change color, shape or texture without an obvious reason. These changes can sometimes be linked to an underlying health condition.

Your skin is constantly itchy

Dry skin can cause itching, especially during colder months, but itching that lasts more than a few weeks, affects much of your body or keeps you from sleeping deserves a closer look. A dermatologist can help find the cause and recommend treatment.

How often should you see a dermatologist?

There isn't one routine skin-check schedule that's right for everyone and the U.S. Preventive Services Task Force says there isn't enough evidence to recommend routine skin cancer screening for all adults.

Your doctor or dermatologist may recommend regular skin exams if you have a personal or family history of skin cancer, many unusual moles or other risk factors. If you've already had skin cancer, follow the exam schedule your dermatologist recommends. Between visits, pay attention to your skin. If you notice something new, changing or unusual, don't wait until your next routine checkup to mention it.

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