Can a one-year-old child get mouth ulcers?

One-year-old children may develop oral ulcers. Oral ulcers in one-year-olds can be caused by various factors, including but not limited to poor habits (such as lip-biting or tongue-biting), genetic predisposition, vitamin deficiencies (particularly vitamins B and C), infections (such as pathogens like herpes simplex virus), and trauma (such as irritation from sharp edges of primary teeth). Symptoms of oral ulcers typically include pain, redness, swelling, and drooling. When these symptoms are observed in a one-year-old child, it is recommended to seek timely medical evaluation at a hospital to determine the exact cause and receive appropriate treatment. Additionally, parents should pay attention to their child's oral hygiene, avoid accumulation of food debris in the mouth, and prevent bacterial growth that could lead to infection.