Hemorrhagic splinters

I was wondering, does anyone else get little black dots and lines on their nails? I think they are called Hemorrhagic splinters . I have them on 4 of my nails. Some of them are dots like below and some are lines. Do they mean anything?

I get them, always lines, especially in my little finger nails. No idea whether they have any significance ... I've never thought about it I suppose, they don't hurt and come and go. Dermnet is a good online resource if you want to look skin things up.