Onychorrhexis

See also: Onychoschizia

Onychorrhexis (from the Greek words ὄνυχο- ónycho-, "nail" and ῥῆξις rhexis, "bursting"), is a brittleness with breakage of finger or toenails that may result from hypothyroidism, anemia, anorexia nervosa or bulimia, or after oral retinoid therapy.^[1]: 786 It can also be seen in melanoma that involves the nail and onychomycosis.^[2]

Onychorrhexis
Other names	Brittle nails
Onicorrexis in a adult
Specialty	Dermatology

Onychorrhexis affects up to 20% of the population.^{[1]: 786 [3]}

See also

• Nail anatomy
• List of cutaneous conditions