When you wear contact lenses, your eyes will be red and bloodshot. What's going on on both side

When wearing contact lenses, the eyes will be red and bloodshot. Generally, it is caused by poor contact lens selection. Poor oxygen permeability and permeability of contact lenses will cause this symptom. If there is inflammation in the eyes, this symptom will also occur. It is recommended to replace contact lenses in time. If this symptom still exists after replacement, you need to seek medical attention in time.