Why does my face feel hot and flushed when I'm embarrassed?
Anxiety & Stress
Facial flushing when embarrassed is caused by blood vessels dilating in response to stress hormones and emotional arousal.
Blushing or facial flushing when embarrassed is a normal physiological response that happens when blood vessels in your face dilate due to emotional arousal. This is triggered by your sympathetic nervous system releasing Psychological stress hormones like adrenaline. While it can feel mortifying, blushing is actually a social signal that shows others you're aware of social norms and care about their opinion. Most people are far less focused on your blushing than you think they are.