Top
30
Doctor insights on: Line In Nail

Share
1

1
I have a horizontal ridge/bump (high to low) on only one thumbnail. Only middle part. Not entirely across. Also thin white vertical line across nail.

I have a horizontal ridge/bump (high to low) on only one thumbnail. Only middle part. Not entirely across. Also thin white vertical line across nail.

Probably nail fungus: While a picture is definitely better than ta housand words, your description suggests nail fungus. You can get it checked at a local urgent care clinic for a more definitive diagnosis. In the meantime, put Vicks vaporub on it a couple of times daily for a week or so and see if it makes a difference. Feel better:) ...Read more

3

3
Dark or black vertical line on nail beds 19 year old African American I tend to bite my nails a lot too.my aunt has the same thing.should I worry?????

Dark or black vertical line on nail beds 19 year old African American I tend to bite my nails a lot too.my aunt has the same thing.should I worry?????

Melanonychia.: The most common diagnosis is melanonychia which is benign hyperpigmentation of the nailbed in persons with dark skin color, and is a normal variant. But just to be safe, you should have a doctor examine your fingers to make sure there are no suspicious signs of melanoma. It's unlikely, but it's necessary to make sure since we can only give general advice in this section. ...Read more

5

5
I have a black vertical line on 3 nails?

I have a black vertical line on 3 nails?

Melanonychia: Melanonychia is brown or black pigmentation of the nail unit. Melanonychia commonly presents as pigmented band arranged lengthwise along the nail unit, and this presentation is known as longitudinal (lm) melanonychia or melanonychia striata. The most important cause of melanonychia is subungual melanoma, although a variety of other causes includes systemic disorders, trauma, inflammatory disorders. ...Read more

6

6
Horizontal indented line in one nail only. Could it be a beau line?

Horizontal indented line in one nail only. Could it be a beau line?

Yes: yes this could be Beau's line. You may have had some injury to the nail, or sometimes we see these with other systemic illnesses. However one nail involvement would suggest trauma or injury to the nail. Human nail grows from the base at the cuticle, and that is where the injury probably occurred ...Read more

7

7
I have a black line on my nail that has showed up about a month ago. I'm not sure what it is. It was not caused by any injury. ?

I have a black line on my nail that has showed up about a month ago. I'm not sure what it is. It was not caused by any injury. ?

Bruise, injury most: likely. However, without a high quality photo, guessing accuracy is greatly decreased. Suggest use the phone system; AKA internet & a search engine, e.g. https://www.google.com/search?q=nail+bed+black+line select images & look for a similar image. Be aware, depression, ADHD, etc. (like all diagnoses) = names for patterns of behaviors, not insight into reasons or effective/helpful treatments. ...Read more

8

8
What causes a very thin vertical black line down thumb nail?

What causes a very thin vertical black line down thumb nail?

Nail line: Usually it is a normal variant. Sometimes a mole or even a rare melanoma skin cancer can look like a black line in the nail. You should have a dermatogist evaluate the nail. ...Read more

9

9
single black extremely thin&short line under 3 nails and one red line previous pain while having artificial gel nails. Appeared after removal.

single black extremely thin&short line under 3 nails and one red line previous pain while  having artificial gel  nails. Appeared after removal.

Trauma to the nail: This represents trauma to the nail which is not uncommon with artificial nails- I would take a break and let your nails breathe for a bit and they will get better. ...Read more

10

10
There is a dark-brown line on the nail of my thumb which goes from the root of the nail to the end and is around 1mm in width. What could this be?

There is a dark-brown line on the nail of my thumb which goes from the root of the nail to the end and is around 1mm in width. What could this be?

Blood clot is likely: Blood clot as a result of trauma to the finger is a common cause;
However an exaination by your doctor will help rule out other possibilities; ...Read more

11

11
What is the vertical brown line under finger nail?

What is the vertical brown line under finger nail?

Pigmentation: Vertical nail pigmentation or melonychia can be caused by various growths in the growth plate of the nail called the matrix. These growths can be either benign or malignant.
Benign melonychia is relatively common in patients of color e.g. Hispanics and blacks.
Melonychia of recent onset or with recent changes is best evaluated by a dermatologist. ...Read more

12

12
What is the vertical brown line under finger nail ?

What is the vertical brown line under finger nail ?

Melanonychia: Longitudinal melanonychia is a brown-to-black line within the nail. It is frequently seen in patients with darker skin types and often on multiple nails. It can be seen in certain syndromes (e.g., laugier-hunziker) or due to medications. Rarely, it can represent a melanoma (cancer) of the nail and so should be evaluated by a dermatologist. ...Read more

13

13
What could be the reason for appearance of a pale brown line along the nail since more than five years? The lady is 62 year old

What could be the reason for appearance of a pale brown line along the nail since more than five years? The lady is 62 year old

Mole: Solitary pigmentary streaks along a nail can be due a mole developing in the nail matrix, the portion of the nail under the cuticle the grows the nail plate. The streak may also be idiopathic benign pigmentary streaking. In some cases, however the streaking may represent a dangerous growth such as a melanoma. In this case, the streak can affect the cuticle too. See a dermatologist to evaluate. ...Read more

14

14
I have a black line on my nail and by doing research online it says it can be cancer. I need advice and how to tell if that's it or what it could be.

I have a black line on my nail and by doing research online it says it can be cancer. I need advice and how to tell if that's it or what it could be.

It depends: Black line under/on the nail can sometimes be caused by Melanoma(a type of Cancer). In that case it will be changing and growing over a period of few weeks. if it is changing, then you must see your doctor for further examination and to find out what it is. How long have you had it? Have you had any trauma to your nail? ...Read more

16

16
What does a single grey line on the nail of thumb means?

What does a single grey line on the nail of thumb means?

Derm r/o melanoma: Probably benign melanonychia, but best show it to your doctor or dermatologist just to make sure it is not melanoma, which prefers single thumb and great toenail occurence.

http://www.dermnetnz.org/doctors/dermoscopy-course/nails.html ...Read more

18

18
I am having mild mvp with mild regurgitation. Now am having brown vertical line under my nail. Is it due to endocarditis ?

I am having mild mvp with mild regurgitation. Now am having brown vertical line under my nail. Is it due to endocarditis ?

Local More Common: Nail bed injuries/hemorrhages are usually from local injuries, rarely endocarditis in which people routinely have chronic (a) low grade fever, (b) splinter hemorrhages visible in multiple nail beds, hands & feet & (c) do not feel well, e.G like "flu". The key to symptom clues, as a part of diagnoses, is integrated patterns & severity of symptoms combined with additional data, eg. Vegetations echo. ...Read more

19

19
I've had a dark horizontal line across the nail bed of my second toe. I thought it was just an injury at first but it's been there for a few months?

I've had a dark horizontal line across the nail bed of my second toe. I thought it was just an injury at first but it's been there for a few months?

Is it moving?: If growing out with the nail, that is getting further along with time, it was probably an injury and will ultimately disappear. If not, if it is staying still and especially if it seems to be getting larger, you need to see a dermatologist to be checked for melanoma. Good luck! ...Read more

21

21
What is the vertical brown line under finger nail ? I'm taking iron vitamin for my anemic.

What is the vertical brown line under finger nail ? I'm taking iron vitamin for my anemic.

Melanonychia: Melanonychia is a brown-to-black line within the nail, frequently seen in patients with darker skin and often on multiple nails. It can be seen in certain syndromes or due to medications. Rarely, it can be a melanoma of the nail and so needs evaluation by a dermatologist. Probably not related to nail changes of anemia (such as koilonychia). ...Read more

22

22
Several weeks ago, I've discovered a black dotted straight very thin line underneath the nail (left thumb). Is it fungus, cancer, or liver disease?

Several weeks ago, I've discovered a black dotted straight very thin line underneath the nail (left thumb). Is it fungus, cancer, or liver disease?

Need more info: It is not feasible to provide a meaningful answer without examining you. It is not likely to be fungus or liver disease. Cannot rule out melanoma. It would be prudent to see your doctor. ...Read more

23

23
Hi Doctor I have many spots on my body (legs,arms,neck) in different shapes and colors and there is grey line on my nail what is this mean? Thanks

Hi Doctor 
I have many spots on my body (legs,arms,neck) in different shapes and colors and there is grey line on my nail what is this mean?
Thanks

Needs examination: It is impossible to offer any assessment with such a cursory description. I suggest you consult with a clinician who can examine the spots and the line on the nail. ...Read more

24

24
My boyfriend has a black line on his thumb nail .. What does it mean ? How can it go away ? Is it something to be worried about ? He hasn't smashed it

My boyfriend has a black line on his thumb nail .. What does it mean ? How can it go away ? Is it something to be worried about ? He hasn't smashed it

Black line: This probably is going to last for a while. Unfortunately, there seems to be no explanation to the process. It won't hurt to check out with a dermatologist. ...Read more

26

26
I have a brown line on my finger nail what could it be?

Brown nail: Usually common finding. Could be a nail bed mole or nevus. Have a dermatologist take a look. ...Read more

27

27
Black line on my toe nail?

Could be: A normal variant, blood, fungus, melanoma. The concern would be melanoma and hence should be checked out. ...Read more

28

28
My left thumb has a black line going up the nail bed .It started a small line ! i did not hirt myself ! what is this?

My left thumb has a black line going up the nail bed .It started a small line ! i did not hirt myself ! what is this?

Melanonychia: Melanonychia is brown or black pigmentation of the nail unit. Melanonychia commonly presents as pigmented band arranged lengthwise along the nail unit, and this presentation is known as longitudinal (lm) melanonychia or melanonychia striata. The most important cause of melanonychia is subungual melanoma although a variety of other causes includes trauma, drugs, fungal infections, other disorders. ...Read more

30

30
What are these black line on my finger nails?

Pigment deposit: This is just pigment deposit on nails, in certain ethnic group. From its lay out and orientation may indicate health status and dietary deficiency/ change also. ...Read more