What causes canker sores?

Dentist answers

Canker sores are small, painful ulcers in the mouth. Their exact cause is unknown, but several factors may trigger them: minor oral trauma, stress, hormonal changes, food sensitivities (like acidic or spicy foods), vitamin deficiencies, and immune system issues. They're not contagious and typically heal within 1-2 weeks. Avoiding irritants and maintaining good oral hygiene can help prevent them. For persistent or severe cases, consult a dentist via 1-8       DENTALPRO at 18336825776 for expert advice.