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 to the lymph nodes, states the Better Health Channel from the State Government of Victoria.Know More
Some of the risk factors for mouth cancer include smoking or the use of smokeless tobacco and heavy alcohol consumption. While a persistent blood blister in the mouth is enough reason to go to the doctor on its own, other signs of mouth cancer include a visible growth that might be painful; an ulcer that refuses to heal; loss of feeling anywhere in the mouth; difficulty swallowing and moving the tongue; issues with moving the jaw; slurred speech; sore gums; loose teeth; changes in taste; and swollen lymph glands, according to the Better Health Channel.
Because the mouth is so close to the lymph nodes in the neck, once the cancer starts to work its way into other tissues and finds the lymph nodes, it can access the body's bloodstream and lymphatic system. This allows metastasis, or spreading, to take place much more rapidly, notes the Better Health Channel.Learn more about Pain & Symptoms
Oral trauma, post-nasal drip, coughing up blood, gastrointestinal distress, oral cancer, narcotics use and infection can all cause blood to pool in the mouth. Trauma is an extremely likely scenario because it is possible to bite the tongue or cheeks while sleeping. Gingivitis, or gum disease, can also cause the gums to bleed, according to MD-Health.Full Answer >
Fever blisters, otherwise known as cold sores, are caused by the herpes simplex virus that becomes active at various times, according to the American Academy of Otolaryngology — Head and Neck Surgery. Fever blisters are fluid-filled blisters that form on the lips, gums and possibly the roof of the mouth.Full Answer >
Sunburn blisters should be left alone, according to the American Academy of Dermatology. Blisters exist to heal and protect. When a blister is popped, a sunburn may worsen, increasing the chances of an infection.Full Answer >
Having blisters under the tongue can be a symptom of multiple causes, according to WebMD. Since some tongue problems can be dangerous when left untreated, if the blisters remain after one to two weeks, it's best to see a doctor.Full Answer >