Doctor insights on:
Black Line On Toenail Causes
See a podiatrist: If you are runner, this is a common injury called "black toe syndrome" due to blood bruises under the nail plate. Other causes of black toenails are infections - either bacterial or fungal. Another cause may be from a fracture in the last bone of the toe. In any case, see a podiatrist who can examine and treat any of these conditions and recommend ways to prevent recurrence. ...Read more
Hello...my toenail turns black and its hollow I can literally stick anything uderneath the nail. What is the cause and what can I do to get it back to?
It might take 12 to 18 months for a new nail to grow out.
Is it only 1 toe? If multiple have your toes checked out ...Read more
I'm 37, black and a weightlifter. I hurt my big toenail last year. It fell off. Now, I saw 2 or 3 faint streaks in the part growing back. Is there any cause for concern?
Probably not: Discoloration of a nail after trauma isn't unusual. As long as the mark moves and is replaced by clear nail, it generally isn't a concern. ...Read more
Chemical burn...: Or dried blood from the procedure is the most likely culprit ...Read more
What could be the cause of vertical black lines in finger and toenails? I had a nurse tell me it could mean heart problems but after listening to my heart said it sounded normal.
Vein disease common: Venous insufficiency is a common cause of swelling and hyperpigmentation (blackening). This circulation problem is often easily curable although the cosmetic damage may not be completely reversible. A simple, painless and relatively inexpensive ultrasound test can determine if this is the cause. A phlebologist or other physician experienced in this area can quickly assess this problem. ...Read more
Foot turning black:
Something must have happened for that black swelling to occur.
Please have someone take you to the nearest Emergency facility. Things should work out OK. ...Read more
Blood or gangrene: If the toenails are black, you may have old blood under the nail or fungus in the toenail. If the skin of the toe is black you may have gangrene which is when there is no circulation to the toe. In the latter case, gangrene, you need to see a podiatrist immediately or go to the emergency room to have your circulation checked! ...Read more
My husband has a toe nail that is rotten & black & the nail is coming off, what could be the cause?
Most likely Fungus: This sounds like a fungal infection of the toenail. There are various treatment options. Topicals don't work well, but may if you are aggressive with treatment. Oral medication may be needed. This conditiion may be caused by repetitive trauma. Have him see your local podiatrist for evaluation and treatment options. Dr l. ...Read more
About a month ago half my toe nail turned black. It hasn't gone away or even lessened. What's the cause and how to get back to normal color?
Dry blood: It is very common to have bleeding under the toenail without an injury. Everyday walking causes pressure from the toenail hitting the shoe, which can cause tearing of the nail plate from the nail bed which will make the nail look black. In most cases this is self-limiting. However rarely this can be melanoma And needs to be evaluated. ...Read more
So I have this black blister on my foot. I'm freaking out cause my bf said it looks like a blood blister and it can kill you. Is that true?
Dry blood: When a blood blister dries, it usually turns black. But if it is moist and black with redness of the surrounding skin it may be an infection. Infections can be serious when bacteria get into the blood. In such cases the symptoms include fever, chills and pain. Oral or IV antibiotics are used when this develops =medical treatment. ...Read more
Would a spider bite, I believe it is anyways; black core within a large red spot; just above my ankle cause my foot and ankle to swell? What is the time frame for this to heal? Thanks
Black spot under toe nail spot is on nail I have been taking apple cider vinegar pills for a few months could this have caused it.
No: The dark spot could be a small bleed under the nail but if it does not grow out, seek consultation with a podiatrist or dermatologist. ...Read more
Fungus vs. Trauma: The 2 most common causes of painful, thick toenails are fungal infections and traumatically induced changes to the nail. For a complete and thorough diagnosis, visit your local podiatrist. A culture/biopsy may need to be informed to distinguish the cause. ...Read more
The nail lifted: From either fungus or an accumulation of blood klnown as a subungual hematoma. Your choices are too leave alone if not painful or see a podiatrist who will give you option of removing the nail and allowing a new one to grow back. This is sometimes done as the current nail may be deformed. ...Read more
Hematoma: Sounds like you traumatized your nail and blood is under it. Blood under the nail is called a subungual hematoma. ...Read more
Bruised...: They probably had some sort of trauma causing a bruise under the nail plate, most likely from rubbing in the shoes. This should grow out with time. ...Read more
Avoid more trauma: Assuming you mean the typical "black nail" which develops from either direct or repetative low grade trauma (ie: toe banging up against tip of shoe in runners), the "black" needs to grow out. If more trauma or pressure can be avoided, the color will grow out as the nail grows. This may take many months. ...Read more
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