Cyst from biting lip: There are some types of cysts that can arise from lip trauma. Some are blue some are thick and dense. Cysts by definition are sacks filled with fluid and line with epithelium cells. Not all lumps are cysts. Hard dense areas can be fibromas (common after injuries) blocked salivary or mucous gland can cause swellings.
Answered 9/13/2018
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A doctor has provided 1 answer
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