Black Streaks Under the Nails [Causes, Symptoms & Best Treatment!]
Black Streaks under the nails (fingernails or the toenails) can be very dangerous. Make 100% sure that you don’t have something more dangerous!
Look:
Red & black toenail pain can be improved with a few simple treatment changes.
We are foot doctors & we see this problem get better almost every day.
The goal is to solve this problem without medication or surgery if at all possible.
So, let’s GO!
Table of Contents
Red or Black Toenail Picture & Photo Gallery:
Look:
A red toenail generally means fresh blood or a fresh injury. This can be called a toenail hematoma, or fresh blood from repetitive irritation.
A black toenail is generally more dried blood, that has crested underneath the toenail.
Very infrequently can a black toenail be something more dangerous like melanoma.
It is also possible for your toenail to the infected with toenail fungus, this can also then result in rubbing and bleeding after the toenail fungus.
If there is toenail fungus, this is usually more of a brown or yellow color.
Please click on the photo gallery for descriptions & full size photos!
Please click on the photo gallery for descriptions & full size photos!
Black Streaks under the nails overview:
Black Streaks under the nails (fingernails or the toenails) can be very dangerous. Follow our diagnosis guide to see if you should be worried!
Note: None of the photo gallery shows any true melanoma or cancerous growth, this is because it is that rare that we don’t actually have any photos of it!
Causes:
The most common cause of black under the toenails is dry blood.
Most People Should Not Be Worried!
A thick black dark streak could be a subungual melanoma- a type of skin cancer.
Don’t be too worried though, the odds are low that you actually have this tough, but better safe than sorry!
Watch the video above to get a better idea if this is what you have.
But always make sure to get checked out.
A black streak under the toenails is almost always dry blood. But make sure to get checked out by a podiatrist if worried!
Dangerous Cause:
Subungual melanoma is the most dangerous cause.
It is a very rare form of skin cancer; it is usually seen between ages forty to seventy.
It is not due to sun exposure or trauma.
It just appears one day without any incident.
If your dark spot appears after an injury then you are most likely on the safe side.
A broken, bloody toe on man’s left foot due to injury.
Subungual Melanoma:
The outlook is usually very good if the cancer is confined to just the toe.
Most people that suffer from this disease have avoided seeking treatment for many, many years. It has usually spread far throughout the body.
If you are cautious and follow up on the streaking and ulcerating in a reasonable amount of time, you will most likely be safe.
The cure consists of excising the lesion or amputation the tip of your fingernail.
See your podiatrist as soon as possible!
Left great toe black toenail with left 2nd toenail fresh bleeding.
Visit a podiatrist for a biopsy immediately if:
The black streak is over 3 millimeters in width.
The streak is widest at the start of the nail origin.
The streak is not uniform or appears disrupted.
The streak changes color the further you get.
The streak continues from under the nail into the skin, termed “Hutchinson’s sign”.
The nail becomes deformed, bloody or starts to crack in the area of the streak.
The nail looks very unusual compared to the other nails.
The streak is more common in the thumb and the big toe.
The streak may even be white; in this case be aware of a nodule or irregularity that is forming under the nail plate.
If you have ever considered that there may be a wart underneath your nail that is just not healing.
Right great toe fracture and right 3rd toe fracture.
Safe Causes:
The odds of the streak in your fingernail are actually pretty low because a lot of people, especially African Americans normally have light thin streaks of dark pigment that that form a vertical line down their nail which is completely normal. It is very easy to predict whether the streak is dangerous or safe.
Normal vertical streaks of pigment that are not melanoma. This is especially common in non-white individuals. These are usually thin lines in a very normal looking nail; check the guide below to see if you are on the safe side or if you should go get it checked out.
Trauma and loss of fingernail leading to a streak of blood. But this should eventually grow out at 1mm per month. If the blood is not advancing then you should get it checked out just to be safe!
Black 2nd toenail vs. big toenail fungus with yellow crust.
Probably safe if:
The streak is less than 3 millimeters in width.
The streak is uniform in length and of continuous color as it progresses down the nail.
The streak or pigment is only present in the nail and not in the skin.
The nail is not deformed, bloody or cracked in that area.
The nail looks normal compared to the other nails.
A broken, bloody toe on man’s left foot due to injury.
If the above does not sound like your situation, consider toenail fungus as well.
Toenail fungus is associated with 80% of all toenail problems.
It usually manifests as thick yellow toenails, but there can be brown and black marks as well.
Toenail Fungus Best Treatment Products
Toenail Fungus Is Associated With 80%+ Of All Toenail Problems:
Toenail fungus is making this nail fall off by digging into the corner. This then swells and the toenail slowly breaks and rips off. This doesn’t always cause pain, it can happen gradually and just lead to a sore toe.
In our experience, about 90% or more is related to toenail fungus.
The key to toenail fungus is to trim it is much as possible, and file that nailed down.
If you are able to do that, you have to make sure you can kill fungus the rest of the way.
The best way to do that is to soak exfoliate the affected toenail skin. So, consider foot soaks.
At the same time you have to apply antifungal medication such as these medications recommended here, or the toenail repair pens
Best Toenail Repair Products:
Best Toenail Repair Pen.
Top Choice For Direct Toenail Application.
Top Choice For Cream For Toenails & Webspaces.
Great Option For Foot Soak.
Great Tea Tree Oil Treatment
Price:
$25.99
$19.90
$17.99
$17.97
$21.99
Overview:
4 Pens with quick dry application that leaves a sealing lid on top. Easy to store and apply. Key is still to trim/file the toenail first!
All natural option that is toxic to fungus. This is similar to tea tree oil in that respect but can be more effective. You still need to exfoliate dead skin and trim thick toenails.
All natural cream option. This is a good option compared to some of the quick dry gels. This can be used on the skin surrounding your toenails.
Safe, cost effective and relaxing all at the same time! This needs to be used in a 20 minute foot soak. Works well for exfoliating loose skin/toenail as well as softening.
Tea Tree Oil is well studied and an all natural anti-fungal treatment.
Pros:
Easy to use, quick drying. This fills into the cracks and seals them with minimal mess. This is great for sealing even dehydrated keratin granulations.
All natural, relatively cost effective. 1,000s of reviews with excellent results. Very clean and quick drying, easy to apply.
Relatively cost effective. All natural tea tree oil that is proven toxic to fungus. Can be used on surrounding skin as well.
Very safe, little risk, low cost and very effective if used correctly. The key is to use it as an aid to soften and exfoliate loose/dry dead skin and toenail.
Great reviews at 4.7/5 at 500+ overall reviews. Well proven and natural option.
Cons:
0% chance of working if your toenail is loose and has no blood supply. Make sure you trim and file any loose finger or toenail. Otherwise “0% CHANCE OF WORKING!” You cannot restore a dead toenail without blood flow.
Small amount and a little more expensive than some other options. Once more has 0% chance of working if your goal is to heal a dead, detached toenail or dry skin. Are you noticing this is a trend? This is really the key!
Still more expensive than other options. Can get messy all over different areas of your foot. Key is still debride and cleaning your dry dead toenails and skin. TRIM them!
It once more has 0% chance working if you are trying to save loose and dead crusty skin. Fungus will always grow on this if no blood flow. It can not regenerate dead skin, only exfoliate it.
Not the greatest amount of solution, the all natural solutions can be more expensive.
Crucial Tips:
There is some evidence that these active ingredients work, just be aware: These are not FDA approved and massively studied medications!
There is some evidence that these active ingredients work, just be aware: These are not FDA approved and massively studied medications!
There is some evidence that these active ingredients work, just be aware: These are not FDA approved and massively studied medications!
There is some evidence that these active ingredients work, just be aware: These are not FDA approved and massively studied medications!
Although tea tree oil does nave studies and is antifungal, it is not an FDA approved medication and not studied for this specific use.
Affiliate Link (Buying through these links will connect you to Amazon):
4 Pens with quick dry application that leaves a sealing lid on top. Easy to store and apply. Key is still to trim/file the toenail first!
Pros:
Easy to use, quick drying. This fills into the cracks and seals them with minimal mess. This is great for sealing even dehydrated keratin granulations.
Cons:
0% chance of working if your toenail is loose and has no blood supply. Make sure you trim and file any loose finger or toenail. Otherwise “0% CHANCE OF WORKING!” You cannot restore a dead toenail without blood flow.
Crucial Tips:
There is some evidence that these active ingredients work, just be aware: These are not FDA approved and massively studied medications!
Affiliate Link (Buying through these links will connect you to Amazon):
All natural option that is toxic to fungus. This is similar to tea tree oil in that respect but can be more effective. You still need to exfoliate dead skin and trim thick toenails.
Pros:
All natural, relatively cost effective. 1,000s of reviews with excellent results. Very clean and quick drying, easy to apply.
Cons:
Small amount and a little more expensive than some other options. Once more has 0% chance of working if your goal is to heal a dead, detached toenail or dry skin. Are you noticing this is a trend? This is really the key!
Crucial Tips:
There is some evidence that these active ingredients work, just be aware: These are not FDA approved and massively studied medications!
Affiliate Link (Buying through these links will connect you to Amazon):
All natural cream option. This is a good option compared to some of the quick dry gels. This can be used on the skin surrounding your toenails.
Pros:
Relatively cost effective. All natural tea tree oil that is proven toxic to fungus. Can be used on surrounding skin as well.
Cons:
Still more expensive than other options. Can get messy all over different areas of your foot. Key is still debride and cleaning your dry dead toenails and skin. TRIM them!
Crucial Tips:
There is some evidence that these active ingredients work, just be aware: These are not FDA approved and massively studied medications!
Affiliate Link (Buying through these links will connect you to Amazon):
Safe, cost effective and relaxing all at the same time! This needs to be used in a 20 minute foot soak. Works well for exfoliating loose skin/toenail as well as softening.
Pros:
Very safe, little risk, low cost and very effective if used correctly. The key is to use it as an aid to soften and exfoliate loose/dry dead skin and toenail.
Cons:
It once more has 0% chance working if you are trying to save loose and dead crusty skin. Fungus will always grow on this if no blood flow. It can not regenerate dead skin, only exfoliate it.
Crucial Tips:
There is some evidence that these active ingredients work, just be aware: These are not FDA approved and massively studied medications!
Affiliate Link (Buying through these links will connect you to Amazon):
It is also very important to fix your foot fungus.
Even if you cure your toenail fungus, keep your toenails trimmed in healthy: it is possible for your foot fungus to spread back into toenails.
So make sure you treat your foot fungus, as well as your toenail fungus.
Best Foot Fungus Products
Best Fungus Combo (Foot Soak, Body Wash & Toe Ointment)
Best Foot Powder Option For Shoes.
Best Shower Body Wash
Best choice for Foot Bath Mix
Best & Most Cost Effective Foot Soak Tub.
Price:
$30.99
$29.88
$15.30
$14.65
$14.97
Overview:
This is almost everything you need for foot fungus! This has a foot soak powder, body wash for showering and toenail ointment.
3 pack of foot powder spray. This is great for shoes and feet, but not as practical outside the foot or shoe.
Great cost effective shower wash.
Mix of epsom salts, tea tree oil for a good price.
This is a cost effective tub for foot soaks. You still need to also buy a foot soak powder or solution!
Pros:
Great cost ($50+ separately), $29 in the bundle. Tea tree oil has proven antifungal benefits. Excellent reviews and good overall cost value.
If you sweat in your shoes, this is your best bet. This will soak up sweat and kill fungus. Very effective and excellent Amazon reviews. 3 pack online is the price of one bottle at the store.
Over 5,000 5 star amazon reviews. Great reviews, medically proven component in tea tree oil. All natural with excellent results.
Epsom salts and tea tree oil have proven effect. Epsom salts make your loose skin flake off and tea tree oil is anti-fungal. Great price and near 5 star review on Amazon.
Excellent choice for cost effective foot soak tub. Top notch reviews on amazon, great price.
Cons:
The combo could be more than you need. You still need a foot bath tub.
Powder makes a big mess. Good for shoes but it can get powder inside your shoes. Can have chemical like smell.
Can be more expensive than regular soap. It may not be enough by itself without soaking or especially further toenail treatment.
Foot soak by itself may not be enough to fix your problem, but a component. You also need a foot tub.
Not much downsides, it’s a tub! But you have to get foot soak powder or antifungal solution separately.
Affiliate Link (Buying through these links will connect you to Amazon):
3 pack of foot powder spray. This is great for shoes and feet, but not as practical outside the foot or shoe.
Pros:
If you sweat in your shoes, this is your best bet. This will soak up sweat and kill fungus. Very effective and excellent Amazon reviews. 3 pack online is the price of one bottle at the store.
Cons:
Powder makes a big mess. Good for shoes but it can get powder inside your shoes. Can have chemical like smell.
Affiliate Link (Buying through these links will connect you to Amazon):
Mix of epsom salts, tea tree oil for a good price.
Pros:
Epsom salts and tea tree oil have proven effect. Epsom salts make your loose skin flake off and tea tree oil is anti-fungal. Great price and near 5 star review on Amazon.
Cons:
Foot soak by itself may not be enough to fix your problem, but a component. You also need a foot tub.
Affiliate Link (Buying through these links will connect you to Amazon):
The key to prevent toenail ripping and lifting is to have a good supportive shoes.
If you have a good supportive shoe, that keeps pressure off your toes in your toenails, there will be no lifting and cracking to allow bacteria and fungus to get in.
This almost seems counter-intuitive, but when people make a switch to really good supportive shoes that fit properly, there toenail problems almost always get better over the next few months or a year.
Your current nail is already likely destroyed, especially with joggers toe, but let the new nail growing healthy without new damage.
Click the following link for our most recommended shoes. Try to focus on shoes with mesh and room around the big toe and also the smaller toes.