Pimple Inside Mouth Cheek. A mucous cyst also known as a mucocele is a fluid-filled swelling that occurs on the lip or the mouth. They can sustain a small injury to the surface which may cause the gland to heal shut.

Buccal mucosa is another name for the inside lining of the cheeks. A mucous cyst also known as a mucocele is a fluid-filled swelling that occurs on the lip or the mouth. You may have bitten your cheek which causes a fibroma or thickening of the cheek that can look like a pimple.
A mucous cyst also known as a mucocele is a fluid-filled swelling that occurs on the lip or the mouth.
These cancers usually occur in the thin flat cells called squamous cells that line the buccal mucosa and other parts of the mouth. A pimple inside mouth and cheeks Pimples appearing inside the mouth and cheeks could be as a result of cold or canker sores. A papule or swollen raied area inside the cheek may represent a gland that has been pinched off or a duct that has been pinched off depending on where. Cold sores are mainly caused by the herpes virus.