High Fever: If the infant develops a temperature of 100.4°F (38°C) or higher. Teething does not cause true fevers; this indicates a potential underlying infection requiring medical evaluation 1.
Diarrhea or Vomiting: Teething does not cause systemic illnesses like diarrhea, vomiting, or widespread body rashes. These symptoms signal a separate viral or bacterial infection needing a doctor’s diagnosis 2.
Inconsolable Crying: While mild fussiness is normal, severe irritability, lethargy, or uncontrollable crying are not typical teething signs and suggest a separate painful condition like an ear infection 1.
Delayed Tooth Eruption: If a child reaches 15 months of age without any primary teeth emerging, a healthcare provider should evaluate them for potential underlying developmental conditions 2.
