<human>: I sometimes get a bubble (sometimes up to 3) like blister at the very tip of my tongue. it stay there for some time and disappear. is that normal. what is the cause
<bot>: Hi, would like to have some more information about your problem: 1. What is the size of the blisters- 2. Is there appearance preceded by fever or a other symptom 3. Are there blisters on any other part of the body including genital region 4. Your age and sex 5. Do you use tobacco in any form?  And please get your hemoglobin checked as sometimes if the hemoglobin is low these blisters can appear.  There are many conditions like Memphis and Lichen Plans in which such type of blisters can appear.