Robuta

https://patient.info/doctor/history-examination/cyanosis
Cyanosis is the abnormal blue discoloration of the skin and mucous membranes. Cyanosis is caused by an increase in the deoxygenated haemoglobin level.
blue lipscyanosisskincausestreatment
https://www.wissen.de/medizin/cyanosis
gesundheit medizincyanosisausdemheilkunde