Fingernails

This document discusses 7 signs of possible health problems that can be seen in fingernails: 1. Yellow nail syndrome, which causes yellow discoloration and thickening of nails, can indicate respiratory or circulatory issues. 2. Nail pitting, seen as small depressions in nails, can be caused by psoriasis, nail injuries, or conditions damaging the nail cuticle. 3. Nail clubbing, when fingertips enlarge and nails curve around them, often indicates lung disease, inflammatory bowel disease, or liver disease due to low blood oxygen. 4. Spoon nails, which are soft and scooped out, can indicate iron deficiency anemia.