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Slide show
Slide show: Fingernails — 7 signs of possible health problems
By Mayo Clinic staff
Beau's lines
Beau's lines are indentations that run across your nails. They can appear when growth at the area under your cuticle is interrupted by injury or severe illness. Diseases or illnesses associated with Beau's lines include:
- Uncontrolled diabetes
- Circulatory diseases, such as peripheral artery disease
- Illness associated with a high fever, caused by pneumonia, scarlet fever, mumps or measles
- Malnutrition
