Can teething cause flu symptoms in baby?

Maybe mild flu-like: Teething is blamed much too often for many discomforts of infancy. Nonetheless, cutting teeth through the gums for some babies can be most uncomfortable--triggering fussinness, excessive drooling, refusal to nurse, and even low grade fever. But many other more serious illnesses--especially ear infections or pharyngitis--may mimic the same symptoms. It is best to have your pediatrician evaluate.

Sometimes: Teething may cause irritability, and occasional low grade temperature. It should not produce nasal drainage, cough, or prolonged elevation of temperature.

No, not flu symptoms: Some babies have no symptoms at all. Most will have excess saliva, want to chew on things and perhaps be a little cranky. A few may develop low grade fever and/or mild diarrhea. If more severe symptoms develop the baby should be evaluated by their pediatrician as they may have a cold or illness in addition to teething.