Hand-foot-and-mouth disease (HFMD) is a common
viral affection. Onychomadesis can be associated with
HFMD.
Seven children (3 boys and 4 girls) aged between 7 and
11 years were consulted during 2018 for an acquired
onychodystrophy of the nails from the hands and feet. The
anamnesis revealed that all patients were diagnosed with
HFMD 3-5 weeks before the appearance of onychomadesis.
Onychomadesis is a manifestation that can be
associated with HFMD. This occurs on average 4-5 weeks
after the infection, the Coxsackie A6 virus being the most
commonly agent causing the disease. The pathophysiology
of onychomadesis is unclear. Evolution is favorable, the nail
rising normally about 9 months in the legs and 3 months in
the hands.