Redness and warmth of the face after exercise may be caused by capillary expansion, facial congestion and excessive temperature difference.
1. Capillary expansion: exercise will cause the body temperature to rise, resulting in the expansion of capillaries in the face, coupled with exercise can accelerate blood circulation, the phenomenon of redness and heat in the face.
2. Facial congestion: The blood in the face itself is sufficient, and accelerated blood circulation after exercise will lead to facial congestion, resulting in the phenomenon of redness and heat in the face.
3. Excessive temperature difference: When the temperature difference between outdoor and indoor is too big, the blood vessels will lose elasticity in repeated contraction and expansion after returning to indoor after outdoor exercise, and the symptom of redness and warmth of the face after exercise will appear.
Redness and fever after exercise is a normal phenomenon, and will subside after a period of time. If the redness and fever persist, you should go to the hospital immediately for examination and diagnosis.