White spots on my hands and legs. What are these?

[Hariharan]

I have recently noticed some white spots on my hands and legs.It doesn't itch nor pain but i noticed something interesting. When i raise my hands it disappears completely. What are these? can anyone diagnose? Is it something serious disease?

[Dr.Saiyan]

Hi hariharan! Your condition could be bier spot to me which is also called physiological anaemic macules.

[pepsimax]

Just to add, there is some information available here (http://www.dermatalk.com/blogs/skin-disorders/bier-spots-small-white-spots-on-skin/).

[Hariharan]

Thank you both, that makes sense. It matches exactly same as mine. Thank you again for help.

[kevinkrieger]

Protect your skin from sun exposure because it is better than safe.