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.
Chewing of hard food items can lead to blood blisters in the mouth. The following are the few causes of this condition. 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. Citrus food causes mouth problems and the best way to prevent blisters is by avoiding such kind of food. 2  Nutritional Deficiency: Blisters in the mouth may be caused due to lack of vitamins in the diet. 3  Vitamin C and B12 can be useful in preventing the formation of blood blisters present in the mouth.