My baby has little Mark's on his legs am abit worried

[Jhasedaisy1]

He has these little Mark's on his leg they looks purple bruises

Are his legs cold?
Is he ill?

If they are permanent, could they be Mongolian blue spots?

How old?

Sounds a bit like my ds. He used to get these, first time was about 10 weeks old. They did blood tests and decided it was probably a viral rash, but certainly nothing to worry about.

How old is he?
Is he well in himself?

Yes hes well now they went on their own which am so happy about glad their was nothing wrong with him.
Hes 4months old

Glad they've gone, babies can cause such worry can't they?