<s>[INST] I have bilateral swelling of the gums above my first and second molars.  The swelling does not start where the gum meets the teeth, but slightly above it.  I have no tooth pain, but the gums are sore and the swelling/lump feels rock hard.  It started on the right side yesterday, but now the left side is slightly swollen.  It started as just redness, and now white lesions that look like canker sores have appeared on both sides.I'm going to a doctor tomorrow, but I'm curious what this could be and am worried. [/INST] Hello, Thank you for consulting with HCM.When a tooth is infected and the infection might have spread to the apex of the tooth , an abscess is formed at the apex of the which causes swelling.It can be possible that the swelling which you are experiencing is this abscess only.Better you visit a good dentist and get an x- ray done of that area, which will show the cause of swelling in gums.Hope it will help you. </s>