What causes tongue ulcers and red, swollen gums in a 2-week-old infant?

Ulcers on the tongue and swollen, red gums in a two-week-old infant are usually caused by various factors. 1. Viral infection is one of the main causes. Viruses can invade the oral mucosa, leading to tissue damage. 2. Deficiency in essential nutrients, such as vitamin C and vitamin B, may also trigger ulceration and inflammatory responses in the oral mucosa. 3. "Heatiness" (internal heat) is another common cause. When the baby does not consume enough water or ingests excessive spicy or irritating foods, "heatiness" can easily occur, making the oral mucosa susceptible to inflammatory factors. In such cases, parents should promptly take the baby to the hospital for examination and follow the doctor's recommendations for targeted treatment. Meanwhile, parents should also pay attention to the baby's oral hygiene, avoid leaving food residues in the mouth, and maintain good oral cleanliness.