What kind of tumor is it if it is growing in mouth next to the tooth and jaws, but doesn't hurt or have any pus?

Tumor?: There is not enough information to diagnose a tumor. How do you know it is a tumor? How long has it been there? Is it hard or soft? Has the jaw enlarged and have the teeth moved? Where is it located in the mouth: front or back, cheek side or tongue side? Please see your dentist or pcp to get these questions answered for a diagnosis.

Exam/Biopsy needed : There are many different types of odontogenic/non-odontogenic tumors and cyst of the jaws. Without radiographs, physical exam, and, a biopsy one can only speculate. You should seek immediate consultation with an oral max surgeon to help you through this process. If you need further assistance please inbox me and i will assist you seeking proper care.