Commute 45 to 59 min. 7.20%. Commute greater than 60 min.
1 Oral Ulcers: Usually, an ulcer is referred to as an open wound which is formed inside the mouth and this occurs due to the invasion of micro organisms. 2  Sometimes, blood blisters are caused due to the skin infections caused as a side effect of medications. 3  Ulcers are of two types they are: Canker sores and Cold sores.
If you suffer from mouth biting, specifically inside of cheek biting, there are many possible causes which include the following: Chewing while trying to do something else such as reading (especially reading a newspaper while eating), talking or simply doing something else can make one to bite her or his cheeks.