Longitudinal striae
Longitudinal striae, also known as Beau's lines, are deep grooved lines that run from side to side on the fingernail or the toenail. They may look like indentations or ridges in the nail plate. This condition of the nail was named by a French physician, Joseph Honoré Simon Beau.
Etymology[edit]
The term "Longitudinal striae" is derived from Latin, where "longitudinalis" means lengthwise and "stria" means furrow or channel. The term "Beau's lines" is named after the French physician who first described this condition in 1846.
Causes[edit]
Longitudinal striae or Beau's lines are caused by a temporary cessation in cell division in the nail matrix. This can be caused by severe illness, malnutrition, or trauma to the nail bed. Certain systemic diseases, such as mumps, syphilis, and pneumonia, can also cause Beau's lines. Other potential causes include chemotherapy, carbon monoxide poisoning, and coronary occlusion.
Symptoms[edit]
The primary symptom of longitudinal striae is the appearance of deep grooved lines running from side to side on the fingernail or the toenail. The lines can be of varying depth and length, depending on the cause and duration of the underlying condition. In some cases, the nail may also become discolored or brittle.
Diagnosis[edit]
Diagnosis of longitudinal striae is primarily based on the physical appearance of the nails. In some cases, a doctor may also take a nail biopsy to rule out other conditions. The doctor may also ask about the patient's medical history and any recent illnesses or injuries.
Treatment[edit]
Treatment for longitudinal striae primarily involves addressing the underlying cause. If the lines are caused by a systemic disease, treating the disease will often improve the appearance of the nails. In some cases, a doctor may recommend using a nail hardener or other topical treatments to improve the strength and appearance of the nails.
See also[edit]
Ad. Transform your health with W8MD Weight Loss, Sleep & MedSpa

Tired of being overweight?
Special offer:
Budget GLP-1 weight loss medications
- Semaglutide starting from $29.99/week and up with insurance for visit of $59.99 and up per week self pay.
- Tirzepatide starting from $45.00/week and up (dose dependent) or $69.99/week and up self pay
✔ Same-week appointments, evenings & weekends
Learn more:
- GLP-1 weight loss clinic NYC
- W8MD's NYC medical weight loss
- W8MD Philadelphia GLP-1 shots
- Philadelphia GLP-1 injections
- Affordable GLP-1 shots NYC
- Budget GLP-1 shots
|
WikiMD Medical Encyclopedia |
Medical Disclaimer: WikiMD is for informational purposes only and is not a substitute for professional medical advice. Content may be inaccurate or outdated and should not be used for diagnosis or treatment. Always consult your healthcare provider for medical decisions. Verify information with trusted sources such as CDC.gov and NIH.gov. By using this site, you agree that WikiMD is not liable for any outcomes related to its content. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates, categories Wikipedia, licensed under CC BY SA or similar.
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian


