Hi dear , As per query there is inflammation on the roof of the mouth . There can be two possibilities for this . First the inflammation can be a mucocele . Normally, saliva drains from the glands to the mouth, but when the ducts are obstructed, saliva gets stuck inside where it pools and creates a bump . Mucoceles often go away without treatment. If they don t, possible non-surgical treatments to alleviate swelling include steroid injections and topical medications. Surgical removal is also one of the option . Secondly it can be a torus palatinus . A torus palatinus is a bony protrusion on the palate (roof) of mouth. It i harmless , but if it interfere in normal functioning of oral cavity the it needs surgical correction . I would suggest you to consult oral surgeon for proper diagnosis and to find out exact cause . Hope your concern has been resolved. Dr. Harry Maheshwari