This possibility of canceration of gingival polyps is theoretically possible. For example, if the polyp is too big, eating will be stimulated by foreign bodies for a long time, which is similar to the principle of mechanical oral leukoplakia canceration, but this is only a theory. Gingival polyps are mostly caused by local tooth loss and chronic periodontal disease. I am like your gum polyps, mostly caused by periodontal problems. Spontaneous pain is mostly caused by acute attack of chronic inflammation. I suggest you take anti-inflammatory drugs orally and seek medical treatment as soon as possible to remove the cause. Don't worry too much about cancer. After all, its probability is too low, but pay attention to your oral condition. My very best wishes to your health