Intermittent chronic telogen effluvium with an unusual dermoscopic finding following COVID-19.

Various conditions, including infections, can cause telogen effluvium (TE). One of them is coronavirus disease 2019 (COVID-19), where hair loss usually begins between 2 and 12 weeks after the illness. TE can be acute or chronic, and the chronic type can be intermittent. Here, we present the case of a 17-year-old girl with severe and widespread hair loss following an upper respiratory infection suspected to be COVID-19, with the patient having a history of such attacks since childhood. Evidence from biopsy and dermoscopy indicated a diagnosis of TE.