Why does a 6-year-old child who has started school still suck their thumb?

Patient's question:

My colleague's baby has been eating their hands since they were young. She never paid much attention, thinking that as a little girl grows up, the habit would naturally go away. Now that the child is 6 and already in school, this bad habit still hasn't been corrected, and it's driving her crazy.

Doctor's answer:

Girl, 6 years old, has the habit of sucking her thumb, and the physiological possibility is considered relatively high. It is possible to perform a thorough examination to rule out other diseases before implementing intervention treatment. In this case, the physiological possibility is relatively high, and pathological conditions are generally not considered, especially when other conditions, such as physical therapy and normal growth and development, are present. Of course, if you are not reassured, you can do a brain MRI to rule out brain inflammation for greater peace of mind. If everything is normal, the main focus is to first try to persuade and educate her to change the habit through persuasion. If it is indeed ineffective, you can consider consulting a psychologist to help correct the bad habit.

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