White lined palm

On my right hand these white lines have appeared, they are shaped liked cracks sort of and run up my fingers. They don’t cause any pain but I’m wondering what they could be, any clue?

Dry skin? Apply some lotion, and see if they disappear.

You’re asking for medical advice here. It’s probably nothing serious, but f you are concerned you should see your primary care physician or a dermatologist (not the ER) and have it checked out. That’s what they’re there for.