<s>[INST] Bit my tongue working out and now I have a piece of tongue hanging off. It s about the size of a bb or a caper. It s on there pretty good but it doesn t seem like its going to heal back on. It s kind of like a golf divot on my tongue. Very annoying as it feels like I always have food crumbs on the side of my mouth, plus it s still sensitive. Btw, it happened three days ago. Should I go to a doctor and if so what kind? [/INST] Tongue biting and cheek biting can occur because of stress or anxiety or can occur unconsciously. Some sharp tooth or some missing tooth can also lead to tongue biting and cheek biting. Tongue in cheek biting is a deleterious habit and can lead to irritation and also increases the incidence of canker sores. Tongue biting can also cause bleeding on tongue. You need to make a self-conscious effort to stop this habit of tongue biting. If there are any sharp teeth or missing teeth or your bite is not correct, then you need to consult a dentist. Your dentist can correct the sharp teeth if present. If there is some missing tooth present, then get them replaced. If bite is not correct, then you can get braces treatment or invitations done to correct the bite. Chewing sugar-free gums may provide some help. If bleeding occurs on tongue biting, then you can keep a piece of ice or ice-cold water on it and can use an antimicrobial mouth wash to reduce chances of infection. </s>