Skin under finger nails ?

The skin under my finger nails is darker/ brown than my normal skin color


My friend has the samething she went to a skin doctor and she told her that it's lack from fluids ( water )


can it be for a different reason?


I'm 14 and i dont drink much water, i only drink a cup or soSkin under finger nails ?
well if that's what the doctor said why not trust it?Skin under finger nails ?
Well that's probably the reason but if I was you I would do 2 things:





see a doctor


Drink more water. You don't wanna develop kidney problems.
well drink water!:)