I just had a lump form into the lower part of my jaw on the right side wonder what could be happening?

Many possiblilites: If it's tender, it could be a dental abcess or a swollen lymph node from an infection. If it's not tender, it could be a cyst. The only way to know what it is for sure is to have your dr check it out.

Lumpy Jaw Syndrome: This syndrome is caused by a bacteria called actinomyces. Your doctor will be needed to help figure the actual cause of your problem.

Several causes: You describe an area that has several major structures in the vacinity. A large salivary gland in that area will sometimes become suddenly swollen. There are lymph ndes that can react and swell. Sometimes cysts can be present in that region and will form a "lump". You should have any abnormal growth evaluated.