What does a weakly positive TSH screening mean?

Patient's question:

Main symptoms and onset time of newborn: 2009112
Laboratory test results: TSH mildly positive
Previous treatment history and effectiveness: None
Received assistance: TSH screening mildly positive, what does it mean and how should it be treated?

Doctor's answer:

Hypothyroidism in newborns does not have obvious symptoms, so early screening is essential. In China, it is currently a mandatory screening program. If detected early and treated early, there will be no significant interference with the child's intelligence and physical development. It is recommended to undergo follow-up testing, as it is considered scientifically sound. If the results are normal, you can rest assured. If not, immediate treatment should be sought to prevent interference with the child's growth and development.
Advice: Generally, congenital hypothyroidism in newborns does not have obvious symptoms, so early screening is essential. In China, it is currently a mandatory screening program. If detected early and treated early, there will be no significant interference with the child's intelligence.