Most people have vertical lines on their fingernails and toenails, which are usually harmless and due to aging and/or a lack of certain vitamins. However, stress has the ability to cause deep horizontal lines on your nails called Beau’s lines. The condition itself is harmless, but it can signify you’re either overly stressed or have a serious underlying medical condition.
Foot Fix: If you’re experiencing Beau’s lines on your fingernails or toenails, don’t panic about it being permanent. The lines appear when the body stops producing nail cells for a short amount of time, and they will eventually grow out as the nail grows.
Overall Fix: Beau’s lines can develop due to stress, but the condition may also be a sign of a more serious underlying health condition. Therefore, anyone with Beau’s lines or any other type of horizontal lines on their fingernails or toenails is advised to visit a health professional for a full checkup.