<s>[INST] I have an little ball of gum tissue in the back of my mouth on the bottom left corner wear my wisdom teeth used to be its the same color as the rest and I just noticed it yesterday it feels like there is food in my mouth it moves around but isnt tender and doesnt hurt what cud that be? [/INST] HelloWelcome to HCMI read your query. You have mass of tissue where your wisdom tooth used to be. Since you already got your wisdom tooth extracted so I will advice you to get your opg xray done, which will reveal the final diagnosis.  Mean while you can do warm salime gargle 3 to 4 times a day.Thankyou </s>