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.
Blood blister in mouth can also be due to oral cancer that usually affect the cells lining the mouth, lips, tongue floor and the roof of the mouth. Inside cheeks, tonsils, gums, soft palate and salivary glands are also at risk of mouth cancer.