Black marks on nails

[ohyesohyesoh]

I don't know if I'm misremembering a thread on here but just want to double check. I seem to remember something along the lines of weird marks on your nails can mean something dodgy and should be checked by a dr.
I've attached three pics of three of my nails all with black marks under the nail.
I've had no trauma to the fingers , they all look like pencil lines under the nail.
Am I making it up about needed to be checked out, or have you heard it too??

I think they're called splinter haemorrhages- most commonly caused by trauma but a number pig other reasons dermnetnz.org/topics/splinter-haemorrhage

Not a dr etc etc but I have one of these and was at the drs about something else and showed her. She said fine and the concern tended to be when it started at the edge/base of the nail. Not a dr though so check

Thank you

Don't worry about this issue in your body, because it is a common one. Sometimes it will appear because some objects or things hit your nails. I also facing this type of issues. Later few months that black mark vanished from my nails.