<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hello I have a big bump on the roof of my mouth I ve had it for about a week not at first it wasn t painful and it was small note is gotten bigger plus it hurts bad I tried suctioning it with a needle and nothing but blood came out what is it why is it there and what causes it? It is scary and very annoying  <response>: Hi. Thanks for your query. Read your history and understood the problem. The growing swelling in the roof of the mouth can be an abscess into the preexisting adenoid or a cyst of the minor salivary gland. I would advise you the following:-First, do not puncture or fondle with it as this may create secondary infection and cause more problems. -Get an opinion of an ENT or Oral Surgeon as soon as possible for a proper clinical diagnosis.-Get CT scan of the area to see the extent, and other relevant investigations of the blood, urine and stool. -Get operated to get a cure. 