Is it normal for a wisdom tooth coming in to become inflamed and make face swell? what signs indicate immediate removal is necessary?

Yes, WNL: It is certainly within normal limits to have inflammation and swelling around an erupting wisdom tooth. These two symptoms can indicate that immediate removal is needed. Consult with a local oral surgeon who can actually see the tooth.

Facial Swelling: In this case, facial swelling indicates an infection. All infections require immediate attention. Your dentist can determine whether or not the wisdom teeth can be retained or need to be removed and when the best time to do so would be. Answers are best given by dentists who can personally examine you and not over the internet.

Wisdom teeth : In many cases wisdom teeth should be extracted due to complications associated with the presence of tooth decay or gums inflammation. It is a common procedure, generally performed under local anesthesia, intravenous (IV) sedation, or general anesthesia by a specially trained dentist or oral surgeon. Often extracting a wisdom tooth is the best solution. See your dentist for x-ray and evaluation.

Some: You don't say how old you are. That would make a difference. Any tooth coming in will go through a period of local swelling and inflammation. Wisdom teeth can take years to finish the process of eruption with periodic soreness. Why put up with it? Get it out. Now if the swelling is more then local and/or can be seen on the outside of your face you need professional help.

Facial Cellulitis.: Facal Cellulitis or swelling of the face and pain in the wisdom tooth area are indicators. Not all wisdom teeth will become inflamed and make the face swell. If your wisdom tooth develops tooth decay or is impacted it will become inflamed from the bacteria in the mouth surrounding the tooth under the gums. Periodic xrays can diagnosis the problem before it occurs.