My fingernails keep splitting straight down instead of chipping. What causes this?

Certain skin and nail disorders can cause or exacerbate nail splitting. Onychorrhexis, characterized by longitudinal ridges and splitting, is often linked to skin conditions like psoriasis and eczema. These conditions can affect the nail matrix and disrupt normal growth.

Managing these underlying conditions with appropriate medical treatments can improve nail health. Dermatologists can provide targeted therapies to reduce inflammation and promote healthier nail growth.

Nails can often reflect systemic health issues. Conditions such as thyroid disorders, liver disease, and circulation problems can manifest as splitting nails. Additionally, certain medications, particularly those used in chemotherapy, can affect nail integrity.

Monitoring your nail health can provide clues to potential medical conditions. If you notice persistent nail changes alongside other symptoms, it is advisable to seek medical evaluation to rule out or address any underlying health concerns.