Pigmented Nails
Get nail discoloration examined and treated – by experienced dermatologists at Derma Medical Clinic in Zurich – Sihlcity
Pigmented Nails
Have chronic abscesses and painful nodules clarified and treated by an experienced dermatologist at the Derma Medical Clinic in Zurich - Sihlcity
Dark streaks, black-brown lines, or noticeable nail discoloration should be examined by a dermatologist – At Derma Medical Clinic, we distinguish between harmless nail changes and medical conditions
Examinations
Dermatological assessment
Documentation of the change
Tissue sample if needed
Procedure
Careful examination
Small tissue sample if needed
Duration
Examination: approx. 20–30 minutes
Biopsy: 15 minutes
What Are Nail Discolorations?
A dark streak in the nail, a brown line on the toe, or a discoloration that slowly changes over weeks.
Often these changes are noticed by chance. They don’t cause any pain and may look harmless.
In many cases, the cause is completely harmless.
But sometimes there is an underlying medical issue: for example, a change in the area where the nail grows – or, very rarely, a nail melanoma.
It’s a good idea to get examined by a specialist if you …
- notice a dark streak or unusual discoloration on a fingernail or toenail
- see that an existing line-shaped discoloration is changing in color, width, or appearance
- observe a brown line under the nail edge or additional discoloration of the cuticle
- have other medical conditions or had suspicious skin changes checked before
- are unsure whether it’s a harmless pigment deposit or a medical condition
What Happens During Treatment of Pigmented Nail Changes?
The dermatologist examines the affected nail with a special magnifier (dermatoscope). This allows us to see structures the naked eye can’t detect.
We look not only at the color and shape of the line, but also: Where does it start? Is it even? Is the cuticle affected?
If the pattern is unclear or changes, we may need to take a small tissue sample.
How are nail discolorations treated?
If the change is harmless, no treatment is needed – we’ll document it and recommend regular checkups.
If we suspect something more serious, we remove part of the nail under local anesthesia and send it to the lab. This procedure is done right in our certified operating room.
You’ll receive results soon and, if needed, a clear treatment recommendation.
How Is Pigmented Nail Treatment Carried Out?
Initial consultation & examination:
We start by discussing your nail changes. Then the dermatologist examines the affected nail with a special magnifier (dermatoscope) to assess the structure and extent of the pigmentation.
Deciding if a tissue sample is needed
If everything clearly looks harmless, we recommend a follow-up interval. If the change is unclear or suspicious, taking a small sample helps ensure accurate diagnosis in the lab.
Tissue sample – if needed
The sample is taken under local anesthesia – either from the nail surface or, if the change is deeper, from the area where the nail forms. The procedure takes about 15 minutes.
Results and next steps
Once we receive the lab results, we discuss them with you. If all is well, no further action is needed. If treatment is needed, you’ll receive a clear plan.
At Derma Medical Clinic, treatments for pigmented nails are performed exclusively by experienced dermatologists:
- Benjamin Miller, specialist in dermatology and phlebology
- Markus Dendorfer, specialist in dermatology and expert in pediatric dermatology
Both have years of experience in diagnosing and treating nail disorders.
Dr. Benjamin Miller
Board-certified Specialist in Dermatology and Venereology FMH
Dr. med. Markus Dendorfer
Board-certified Specialist in Dermatology and Venereology FMH
What to Expect from Us
Experience
Pigment changes in the nail are rare, but when they happen, a trained eye is needed. Our dermatologists know what to look for and provide a well-informed opinion.
Painless Diagnosis
If a tissue sample is necessary, we take it under local anesthesia. The procedure takes only a few minutes and is well tolerated by most patients.
Step-by-Step Evaluation
We analyze, document, compare, and then decide the next steps together with you. That means: medically sound clarity for you.
Everything Under One Roof
You get diagnosis, medical treatment, and skin therapy all in one place. This gives you dedicated contacts, short paths, and coordinated care from first checkup to follow-up.
Have you noticed a dark line or unusual discoloration on a fingernail or toenail?
Book an appointment now for a dermatological evaluation at the Derma Medical Clinic in Zurich – Sihlcity.
FAQ – Frequently Asked Questions About Pigmented Nail Changes
What does a brown or black line in the nail mean?
A dark vertical line – usually brown or black – often comes from harmless pigment deposits. Still, any pigment change in the nail should be checked by a doctor. In rare cases, it could be a nail melanoma.
How can I tell if a nail discoloration is dangerous?
Warning signs include: sudden appearance, thickening, color changes, irregular edges, or spreading beyond the nail. Even if only one nail is affected, a dermatologist should examine it.
What is a nail melanoma?
A nail melanoma is a rare type of skin cancer that grows under or in the nail. It usually appears as a dark line or spot – and is often detected late.
Is every pigment change in the nail a melanoma?
No. Many pigmented lines are benign – caused by genetics, hormones, or pressure. Still, any new or unusual change should be examined by a doctor.
How is a nail pigment change examined?
The dermatologist examines the site using a special lighted device (dermatoscope). If uncertain, a small tissue sample (biopsy) helps rule out melanoma.
Can a nail discoloration be caused by trauma?
Yes. A bruise from bumping the nail, pressure, or tight shoes can also look dark. Unlike pigment lines, a bruise moves up as the nail grows.
How common is nail melanoma?
Nail melanomas are very rare. They make up about 1–3% of all skin melanomas and are more common on thumbs, big toes, or in people with darker skin.
How is nail melanoma treated?
If melanoma is confirmed, the affected nail matrix is surgically removed. Depending on the stage, further treatment may be needed. Early diagnosis offers good chances of recovery.
What should I do if I have a noticeable nail change?
Have any new, growing, or darkening nail change checked by a doctor – especially if it’s just on one nail. The earlier the cause is found, the better.
