Petechiae result from focal leakage of blood from dermal capillaries into the adjacent dermal connective tissue. They present as multiple pin-point non-blanching red or purple macules. (WHO, 2023. ICS-11 ME64.3 Petechiae https://icd.who.int/browse11/l-m/en#/http://id.who.int/icd/entity/262492020)