Why do I have small cut like lines on the top of my tongue?

Hi,

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Thank you for sending across the photographs (attachment removed to protect patient identity). You are having a fissured tongue. It is quite harmless. This is usually hereditary, but can occur in people as age progresses. This does not require any medication unless you have itching or burning sensations on the tongue. Dry and numb tongue is definitely a cause of worry. This is strongly diet dependent. You need to increase the intake of fruits and vegetables as they are the richest sources of vitamins like B complex and vitamin C. For now, you can start off by having a course of multivitamin tablets, once daily for a month. But, medicines are never a substitute for a balanced diet. Avoid hot spicy foods for a month. You will for sure start seeing the difference.