Oral jaw with a hard bulge, first of all, it is recommended to go to the stomatology department of the regular medical institutions to check, here, say some common situations: 1, need to check the time this hard bulge grows out, if it is not found before, it is the bulge that exists for a long time and there is no obvious pain and other uncomfortable symptoms, in general, can be considered bony bulge, such as do not feel comfortable can go to the hospital to perform the jaw bone curvature tomography film to If you are not sure, you can go to the hospital for a surface tomography to clarify the specific situation; 2, there may be a cystic mass growing out of the jawbone, and if the cyst is relatively small and the bony tissue is thicker, it may also produce a hard bulge, and then you will need to undergo surgery to scrape out the cyst and cure the lesion.