hand of a child with weak or brittle fingernails, on gray background, no faces are shown , close up look

are background bad brittle broken care child close closeup condition damage dehydrated dermatitis dermatology disease dry faces finger fingernail fingernails fragile fungal gray hand health healthcare healthy ill isolated line look medicals moisture nail nourishing old onychorrhexis onychoschizia peeling problem procedure protect recovery regeneration shortage shown syndrome thyroid treatment unhealthy vitamin weak year