What diseases can cause a baby to grow slowly?

Patient's question:

2 months old, slow growth, poor response, weak crying, low muscle tone in limbs

Doctor's answer:

Hello, based on your description, it is likely caused by a lack of calcium or trace elements. You can get a trace element test done to check. Try taking Scherl Calcium, cod liver oil, and multivitamins orally. It will gradually improve. I wish you a speedy recovery.
We know that pediatric neurological rehabilitation can cause significant harm to children. If treatment is not started promptly or if the wrong method is used, the condition can progress rapidly, causing great harm to the child. Therefore, parents should pay close attention to their child's condition and take them for treatment in a timely manner.