Most of us shrug off a new spot, a rash that keeps coming back or hair that seems thinner than it used to be. Sometimes that is fine. Other times, a skin, hair or nail change is your body asking for a closer look. Knowing when to see a dermatologist can help you get answers sooner and avoid weeks of guessing with products that are not working.
The short answer: you should see a dermatologist when a mole or spot is new, changing, itching or bleeding, when a rash, acne or other skin problem has not improved with basic care, or when changes to your hair, nails or skin are affecting your comfort or daily life. If a spot looks different from your other moles, do not wait for it to go away on its own. A dermatologist can examine it and tell you whether it needs testing.
Key takeaways
- A new, changing, itching or bleeding spot is one of the clearest reasons to book a dermatologist visit.
- The ABCDEs of melanoma (asymmetry, border, color, diameter and evolving) are a simple way to check your own moles.
- Acne, eczema, psoriasis and rashes that do not improve with over the counter care are worth a specialist visit.
- Dermatologists also treat hair loss and nail problems, not just skin.
- A sudden, painful or rapidly spreading rash, especially with fever, needs urgent medical care rather than a routine appointment.
What a dermatologist does
A dermatologist is a physician who specializes in conditions of the skin, hair and nails. Your skin is your body’s largest organ, and according to MedlinePlus from the National Library of Medicine, it helps hold in fluids, keep out germs, control body temperature and shield you from heat and light. When something goes wrong with it, the effects can range from mild irritation to conditions that need prompt treatment.
Dermatologists diagnose and treat a wide range of problems, including acne, eczema, psoriasis, hives, skin infections, warts, hair loss, nail changes and skin cancer. Many also perform procedures in the office, such as skin biopsies, removing growths and freezing precancerous spots. You can browse dermatologists listed on Physician Care Near Me to see the kinds of practices available in different areas.
Signs it is time to see a dermatologist
There is no single rule for every person, but some signs are strong reasons to make an appointment rather than waiting.
A mole or spot that is new or changing
This is the most important reason to see a dermatologist. The American Academy of Dermatology suggests checking your moles using the ABCDEs of melanoma:
- Asymmetry: one half of the spot does not match the other half.
- Border: the edge is irregular, scalloped or poorly defined.
- Color: the spot has several colors, such as shades of tan, brown or black, or areas of white, red or blue.
- Diameter: melanomas are often larger than a pencil eraser when found, though they can be smaller.
- Evolving: the spot looks different from your other moles or is changing in size, shape or color.
The AAD also advises seeing a board certified dermatologist for any new spot, any spot that looks different from the others, and any spot that is changing, itching or bleeding.
Acne that is not getting better
Mild acne often improves with gentle cleansing and over the counter products. If breakouts are painful, deep, leaving dark marks or scars, or have not improved after a few months of consistent home care, a dermatologist can look at prescription options and help you find a routine that suits your skin.
Itchy, red or scaly patches that keep coming back
Eczema (atopic dermatitis) and psoriasis are common long term conditions that cause inflamed, itchy or scaly skin. Both tend to flare and calm down over time. If moisturizers and basic care are not keeping symptoms under control, or if itching is affecting your sleep, a dermatologist can confirm the diagnosis and build a treatment plan.
Rashes, hives or skin infections
A rash that spreads, lasts more than a couple of weeks, keeps returning or has no obvious cause deserves a closer look. The same goes for hives that keep coming back and skin infections that are not healing. A dermatologist can often identify the cause from an exam and may suggest tests if needed.
Hair loss or nail changes
Thinning hair, bald patches, a scalp that is very itchy or flaky, and nails that are discolored, thickened, splitting or pulling away from the nail bed are all within a dermatologist’s expertise. Some of these changes are harmless, while others can point to a skin condition or an issue elsewhere in the body, so an exam can help sort that out.
When to get urgent care instead
Some skin symptoms should not wait for a routine appointment. Seek urgent medical care, or call 911 in an emergency, if you have a rash that spreads quickly and comes with fever, blistering or peeling skin over a large area, swelling of the face, lips or throat, trouble breathing, or a red, hot and painful area that is growing fast. These can be signs of a serious reaction or infection. A dermatologist can help with follow up care once you have been seen.
What to expect at your dermatologist appointment
Most first visits start with questions about your symptoms, how long you have had them, what you have tried and your personal and family history of skin problems. The dermatologist will then examine the area of concern and may offer a full body skin check.
If a spot needs a closer look, the doctor may recommend a skin biopsy. This usually means numbing the area and removing a small sample of skin to send to a lab. You will be told how and when you will get the results. To get the most from your visit, it helps to:
- Write down when the problem started and anything that makes it better or worse.
- Bring a list of your medicines, supplements and the skin products you use.
- Take photos if a rash or flare comes and goes, so the doctor can see it even if it has calmed down.
- Come with bare skin and nails if the visit is about a spot or nail problem, without makeup or nail polish on the area.
- Note your questions ahead of time so you do not forget them in the exam room.
How to choose a dermatologist near you
When you are ready to book, look for a physician who is board certified in dermatology, has experience with your specific concern and has an office that is easy for you to reach. It is also worth checking whether the practice is accepting new patients and whether you need a referral from your primary care doctor.
Physician Care Near Me lists dermatology practices across the country, such as The Dermatology Center of Worcester, Derma Baton Rouge, Island Park Dermatology and Calyx Dermatology. You can also browse all locations to find doctors and clinics in your city. If you are dealing with sinus or ear problems as well, our guide on when to see an ENT specialist covers that side of things.
Frequently asked questions
When should I see a dermatologist about a mole?
See a dermatologist if a mole is new, looks different from your other moles, or is changing in size, shape or color, or if it itches or bleeds. The ABCDEs of melanoma are a helpful guide for checking your own moles.
Do I need a referral to see a dermatologist?
It depends on the practice and your health plan. Some dermatologists see patients directly, while others ask for a referral from a primary care doctor. Call the office before you book to check.
Can a dermatologist help with hair loss?
Yes. Dermatologists treat conditions of the hair and scalp as well as the skin and nails. They can examine your scalp, ask about your history and talk with you about possible causes and options.
How often should I get a skin check?
There is no single schedule that fits everyone. Your dermatologist can suggest how often you should be checked based on your skin type, history and risk factors. Checking your own skin between visits can help you spot changes early.
Should I see a dermatologist for acne?
If acne is painful, leaving marks or scars, or has not improved after a few months of consistent over the counter care, a dermatologist can help. They can review prescription options and a routine suited to your skin.
Find a dermatologist near you
If a skin, hair or nail change has been on your mind, a dermatologist can take a look and help you understand what is going on. Search the Physician Care Near Me directory to find dermatologists and clinics near you.
This article is for general education only and is not medical advice. Please see a qualified doctor about your own symptoms and treatment.