If the blisters on the tongue are not painful and are located at the base of the tongue in a V-shaped arrangement, this may not be a blister, but a normal body structure called a contour papilla. The internal taste buds of the contour papillae, which are the receptors of the body’s sense of taste, may be mistaken by some people for a lesion, but are actually a false alarm. In addition, tongue blisters may also be caused by tongue burns, oral ulcers, oral herpes simplex, etc.: 1. Tongue burns: When burns are caused by eating overly hot food, etc., they can lead to tongue blisters, accompanied by varying degrees of pain. In general, mild burns do not require special treatment, so pay attention to the diet and try to choose light and liquid food to avoid damage to the blisters. If the blister is large and affects eating, it is recommended to seek medical attention for pain relief and debridement; 2, mouth ulcers: such as improper diet, irregular work and rest, excessive stress, etc. can be caused, the patient can have the symptoms of tongue blisters occur, pain is obvious. If necessary, you can apply lidocaine hydrochloride gel, compound benzocaine gel, etc. for pain relief, or you can also use topical borax, bezoar, Qing Dai and other dispersions to promote blistering and accelerate wound healing; 3, oral herpes simplex: mainly caused by oral infection with herpes simplex virus, the patient’s tongue can be seen on the dense distribution of small blisters, which can be accompanied by fever, headache, fatigue and other symptoms. Although the disease has a certain degree of self-healing, but it is easy to recur. Treatment is mainly antiviral, and commonly used drugs include acyclovir and valacyclovir. In addition, it cannot be ruled out that it is caused by papillitis of the tongue, tongue inflammation, etc. However, since there are many types of such diseases, it is difficult to judge simply based on the blistering of the tongue, and timely medical treatment is recommended when necessary.