A red face is the body's normal response to strong emotions such as shame, anger, stress, or pleasure, and increased blood flow to the face. Red face is caused by the activity of the sympathetic nervous system, which is part of the nervous system that functions to accelerate heart rate, constrict blood vessels, and increase blood pressure. Blushing can also be caused by certain medical conditions. A normal red face occurs when emotions arise that trigger the dilation of blood vessels in the face, so blood flow to the face increases. However, blushing can also occur due to other things that are not normal, both in the form of psychological factors and physical factors. Diseases That Cause Red Faces Some women may like to have a flushed face. However, if the red color on the face is too thick, it can interfere with appearance and indicates the presence of certain medical conditions. Some medical conditions that usually cause red face, namely: Zits Acne is the most common