The tongue is an organ with a dense tissue structure and a rich blood supply, which can easily become blistered due to various causes of injury. More common are ulcers, some Candida may also cause blisters on the tongue, and injuries to the tongue are a not uncommon cause. Tongue ulcers can form blisters due to increased tissue tension during the tissue healing process. Oral ulcers usually disappear on their own within 7 to 10 days, but the tongue ulcer itself may take 2 weeks or more to heal. Ulcer sores may be caused by emotional stress, hormonal changes, and lower immune function. Ulcers from these causes generally go through a recovery phase, causing local tissue swelling and blistering. Candida infection can directly cause blister formation on the surface of the tongue. Antifungal treatment is taken for candidiasis. For mild cases, antifungal medication in the form of an applicator or gargle can be used, while more severe cases can be used in oral dosage form. Maintaining good daily oral hygiene, avoiding antibiotics unless absolutely necessary, and ensuring that the mouth remains well hydrated will help to reduce the occurrence of this condition. Injury to the tongue can also cause blisters to occur. Eating crunchy foods such as potato chips, sucking on hard candy, biting your tongue or drinking overly hot beverages can lead to blisters on the tongue during the day. It is not uncommon for tongue bites and burns to be seen with visible blistering occurring. These problems are usually not serious, and the blisters can disappear quickly once infection is avoided and the tissues have healed. The cause of tongue blisters is mainly a symptom caused by excessive local tissue tension due to various irritations. Treatment needs to be taken depending on the situation.