A hard lump on the roof of the mouth may be a bone growth called a torus, according to Merck Manuals. These growths do not pose a health risk and are generally left untreated unless they cause difficulties while eating o... More »

Bumps or lumps on the roof of the mouth can be noncancerous or cancerous. The most common bony outgrowths on the roof of the mouth are called palatal tori and occur in 20 to 30 percent of the population, according to Dr.... More »

A painful bump on the roof of the mouth may be an ulcer that developed from extra bone, called a mandibular torus or exostosis, bumping against hard foods, explains 1st Impressions Dental Practice. It may also be a fever... More »

A painful bump on the roof of the mouth may be an ulcer that developed from extra bone, called a mandibular torus or exostosis, bumping against hard foods, explains 1st Impressions Dental Practice. It may also be a fever... More »

Common problems that affect the roof of the mouth include leukolakia, dry mouth, thrush and taste changes such as a metallic taste in the mouth, explains WebMD. Infections, commonly caused by a virus or bacteria, can cau... More »

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A lump on the middle of the lower spine could be symptomatic of osteomyelitis (a bone infection usually accompanied by pain and inflammation), an abscess (if the lump is on the skin as opposed to the actual vertebra bene... More »

Some of the noncancerous causes of lumps in the mouth include warts, oral thrush, a torus and salivary gland tumors, notes Merck Manuals. Some precancerous causes of lumps in the mouth include leukoplakia and erythroplak... More »

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