Injuries, bleeding disorders, oral ulcers, food allergies, nutritional deficiencies or other health issues can cause blood blisters in the mouth, according to These painful blisters can appear... More »

WebMD indicates that blood blisters occur when the skin is pinched in a forceful manner and blood vessels are damaged in the process. A common injury that is known to create blood blisters is pinching a finger in a drawe... More »

There can be many causes for mouth blisters or sores, including different types of infections, a burn or injury, braces or dentures that do not fit properly, stress, mouth cancer and some medical conditions, according to... More » Health Diagnostics & Imaging

Blood blisters that keep showing up in the mouth are a possible symptom of mouth cancer. Most mouth cancers begin in the squamous cells that line the mouth. This type of cancer works into deeper tissues, often spreading ... More »

Pain on the roof of the mouth may be referred to as palate pain and may occur due to mouth cancer, infections, canker sore, dental issues, hot drinks or food, irritating substances and burning mouth syndrome. This condit... More »

Causes of dry throat include allergies, breathing through the mouth, dehydration. dry air and exercise, according to Healthgrades. Additional causes include enlarged tonsils, side effects of medication, pollution and str... More » Health Pain & Symptoms

Loss of blood may be caused by fibroids, hemorrhoids, menstrual complications, ulcers and injuries such as fractures, bruises and animal bites. Bleeding can occur internally or externally depending on the cause, notes Me... More » Health Pain & Symptoms