Question
Can symptoms of neonatal hyperthyroidism resolve on their own?
Answer
Symptoms of neonatal hyperthyroidism typically resolve on their own within 1 to 3 months after birth. This is because the thyroid-stimulating hormone receptor antibodies causing the condition come from the mother, not from the newborn itself. Over time, these antibodies degrade naturally, and symptoms gradually disappear, usually without leaving any sequelae. Only in rare cases do symptoms fail to resolve on their own, at which point appropriate treatment measures need to be taken.