Beau’s lines are transverse lines in the nail plate.
Beau’s lines, are indentations that run horizontally across the nails. They can affect both the toenails and fingernails. Beau’s lines are typically a sign of an interruption in the growth of the nail plate.
Some of the common possible causes for the development of Beau’s lines in toenails are:
- Trauma or Injury: Significant trauma or injury to the toe or nail can disrupt the nail growth temporarily, leading to the formation of Beau’s lines.
- Systemic Illness: Severe systemic illnesses such as uncontrolled diabetes, heart disease, kidney disease, or certain infections can cause Beau’s lines. The interruption in nail growth occurs because the body’s resources are redirected to address the underlying health condition.
- Malnutrition: Severe nutritional deficiencies, particularly of proteins and minerals like zinc or iron, can affect nail growth and lead to the development of Beau’s lines.
- Chemotherapy or Radiation Therapy: Certain cancer treatments, such as chemotherapy or radiation therapy, can impact nail growth and result in Beau’s lines.
- Nail Psoriasis: Psoriasis, a chronic inflammatory skin condition, can affect the nails, causing pitting, ridges, or Beau’s lines.
- Nail Fungus or Infection: Severe fungal infections or other infections of the nail bed can interfere with nail growth and lead to the formation of Beau’s lines.
- Certain Medications: Some medications can disrupt nail growth and contribute to the development of Beau’s lines as a side effect.