Some patients may develop hair loss following COVID-19.
Mechanism: possible telogen effluvium, possible alopecia areata, possible other
Clinical features:
(1) confirmed episode of COVID-19
(2) onset of alopecia from after the onset of COVID-19 to 60 days after recovery
(3) exclusion of other causes of alopecia
Risk factors:
(1) longer disease duration (> 10 days)
(2) severe symptoms (fever, myalgia, dyspnea, etc)
(3) trichodynia
(4) female sex
