Beau line - a disorder in the fingernail

Beau's lines - fingernail disorders

Beau lines


What are Beau lines?

Beau’s lines are horizontal grooves in the nail plate that represent an arrest or slow-down in the growth of the fingernail (more specific: the nail matrix).

The depth and width of the Beau line reveals the abruptness and duration of the causal event, and Beau lines move distally with the growth of the nail plate.

This finger nail condition was named by a French physician, Joseph Honoré Simon Beau (1806–1865), who first described the condition in 1846.

What causes Beau lines?

Beau’s lines are usually caused by:

• a sever medical event;
• allergic reaction to medication;
• infection in the nail fold;
• skin disease;
• systemic disease;
• or a serious trauma.

Beau line – a fingernail disorder

PHOTO: Beau lines in various fingernails:

Beau lines in various fingernails

Fingernail disorders in the hands of children!
Fingernail disorders in elderly patients!
Michael Jackson had abnormal fingernails!

At atlas of diseases of the nail!

At atlas of diseases of the nail!

Fingernail disorders in the hands of elderly!

Fingernail disorders in the hands of the elderly are actually quite normal. One could say that Elderly people carry the last 6 months of their medical record on the approximately 10 square centimeters of keratin comprising the fingernails!

Abnormalities of the nail are often caused by skin disease and fungal infection. But fingernail disorders may also indicate more general medical conditions.

When examing the nails it is useful to follow a sequence including these steps:

• Check the nail shape;
• Examine the nail color;
• Survey processes around the nails;
• Compare hands;
• and note skin conditions.

A few of the most common fingernails disorders in the elderly related to the fingernail shape & nail surface are: clubbed fingernails, koilonychia, Beau lines, brittle nails, onychorrhexis, nail pitting, median nail dystrophy, nail beading, rough nail surface, nail thickening, onycholysis, and severe nail curvature.

A few of the most common fingernails disorders in the elderly related to the finger nail color are: absent lunula, pyramidal lunula, lunula with red discoloration, transverse white lines, leukonychia striae, longitudinal brown lines, splinter hemorrhages, Terry’s half and half nails, white nails, pink or red nails, brown/gray nails, yellow nails, and green or black nails.

More details about these nail disorders (and many others) will be revealed in later contributions.

Examples of nail disorders: nail psoriasis, nail pitting & onycholysis.