My mouth always stinks after brushing my teeth. What is the reason?

Causes of bad breath: First, food remains in the mouth to ferment and form corruption. The second is inflammation in the mouth, such as periodontitis and gingivitis. The third cause of bad breath is what people often say, "stomach heat and stomach fire."

If it is the first reason, brushing your teeth or washing your teeth can be solved; But brushing your teeth can't solve the bad breath caused by the second and third reasons.