I have a black spot under my toe nail and it moves when I press on the nail. What is it?

May be bleeding. You may have blood under the nail. This can happen after trauma, either a direct injury or from a repetitive trauma(shoe irritation). The will usually resolve as the nail grows out. If questions see your podiatrist. Fyi:there are cases where cancerous lesions can occur under the nail. This usually is a lesion under the nail that has not moved for months and is not moveable with pressure. Dr l.
Subungual hematoma. This is likely small area of blood, probably from trauma to the toenail. This should lessen and disappear as the toenail grows -- if it does not, have this evaluated by your physician.

Related Questions

I have a brown/black spot on 1toe. Been there for months but toe nail grows slow so not grown out. Does not move when pressed, no memory of trauma. Panic?

See a doctor. Many things can cause discoloration of a toe nail. It could be blood resulting from a history of trauma or a fungal infection. I would advise seeing a podiatrist or dermatologist to rule out anything more serious, such as melanoma. Read more...
Have it evaluated. Some causes of nail discoloration include trauma due to tight shoes, infection, cncer, and medication side effects. Get the feet inspected by a professional to determine the cause of the problem, as treatment varies depending on the diagnosis. Read more...

I have noticed a black spot/line on right toe nail. Nail is still smooth and no pain it is just that spot he has never had any toe issues before?

Probably fine. Most black spots are a result from trauma to the toe. Blood may be trapped under the nail and, in time, it may turn black. Of course, there could be other reasons. A more focused examination might be in order if there is no history of hurting the toe. An experience clinician should have no problem in discerning the difference. Read more...

I recently took my toe nail polish off after a couple weeks and found one of my big toes had a black spot. Is it a fungus or a bruise?

Most likely bruise. Nail trauma is common, whether from repetitive impact from running or just bumping into something . Fungal infections of the nail tend to be associated with yellowish, thickened nails. A dark spot on your nail that doesn't improve over a few weeks should be examined by a doctor to rule out the fairly rare nailbed melanoma. Read more...