It was the practice of the Prophet (peace and blessings be upon him):
"When he (peace and blessings be upon him) became angry, both his (peace and blessings be upon him) cheeks would turn red."
Hadith Referenceصحیح الجامع الصغیر / حرف الكاف / 4758
Hadith Gradingالألبانی:صحيح
Hadith Takhrij[طب] عن ابن مسعود وعن أم سلمة. الصحيحة ٢٠٧٩: أبو الشيخ.