牙肉牙齒有問題

I think you got the earily stage of periodotal disease牙周病. Most hong kong people won't pay attention to brush the area between teeth and gum. Bleeding(流牙血) mean the gum牙肉 is swollen......If you use dental floss and brush well, 流牙血 will be gone.
The more serious one need to see牙醫 for deep cleaning.....otherwise the dirty will trap in the perio-pocket.....the problem can't solve...

你可能有牙周病呀！如果你真的有，那麼就要睇醫生啊！