<s>[INST] My daughter is 5 years old. She has had a white spot on top of her tongue since birth, I was told it was a blocked duct when she was 2 months old that would eventually go away. It s still there. It s slightly hard when she rubs it against her teeth but causes no pain or problem. What is it? [/INST] Hi, this is a normal thing as it is present from birth. In medical terms, its called as geographical tongue. There is no need to worry. Take care. </s>