Dr. Ross Perry, a skin expert, explains that ridges on your nails can signal health issues like nutritional deficiencies, dehydration, or skin conditions.

### Possible Causes
– **Nutritional Deficiencies**: Low levels of Vitamin A, protein, calcium, or severe iron deficiency may cause ridges.
– **Habits**: Picking at nails can also lead to imperfections.

### When to Worry
Most nail changes, such as brittleness or discoloration, are not serious, according to the NHS. However, persistent or unusual changes may warrant a doctor’s visit.