Teething is a natural developmental stage where an infant’s first teeth emerge through the gums. Many parents wonder if this process can lead to a fever. Understanding this milestone and its associated symptoms helps parents provide appropriate care.
Understanding the Teething Process
Teething typically begins around 6 months of age, though it can start between 3 months and after the first birthday. Babies are born with 20 primary teeth hidden within their jawbones, which gradually erupt. The lower central incisors usually appear first, followed by the upper central incisors. This sequence continues with lateral incisors, first molars, and canines, with most children having all 20 primary teeth by around 3 years of age.
Recognizing True Teething Symptoms
As teeth emerge, babies often experience localized symptoms. Common signs include increased drooling, leading to a rash around the mouth. Gums may become red, swollen, and tender. Infants might also show increased fussiness, irritability, or changes in sleeping patterns. Chewing on objects, gnawing, or rubbing their ears and cheeks are common behaviors as babies try to relieve discomfort.
The Teething-Fever Connection: What Science Says
Scientific evidence shows teething does not cause a high fever. While a slight elevation in body temperature might occur due to localized inflammation, this is not considered a true fever. A fever is defined as a rectal temperature of 100.4°F (38°C) or higher. Medical organizations, including the American Academy of Pediatrics, confirm that temperatures at or above this threshold are not directly caused by teething. Attributing a high fever solely to teething can delay diagnosis and appropriate treatment of a potential illness.
Other Potential Causes of Fever in Infants
If a baby develops a fever during teething, it is likely due to an unrelated illness. Fevers in infants commonly signal the body is fighting an infection. Viral infections, such as colds, flu, or respiratory infections, are frequent culprits. Other causes include ear infections or urinary tract infections. Infants often put objects into their mouths during this stage, increasing their susceptibility to germs and infections.
When to Consult a Healthcare Professional
Seek medical attention for a baby with a fever under specific circumstances. If an infant younger than 3 months old has a rectal temperature of 100.4°F (38°C) or higher, immediate medical evaluation is necessary. For babies aged 3 to 6 months, a temperature exceeding 100.4°F (38°C), especially if they appear irritable, lethargic, or uncomfortable, warrants a doctor’s visit. Regardless of age, seek help if the fever is accompanied by symptoms such as headache, vomiting, diarrhea, an unexplained rash, difficulty breathing, or unusual drowsiness. If a child seems very ill or concerning, seeking professional medical advice is always recommended.