Whether swollen and bleeding gums can heal on their own depends on the specific cause that triggered the symptom.
If the patient is experiencing this symptom and it is caused by a sterile inflammatory lesion, a significant improvement in symptoms can usually be seen within 3 to 5 days.
If this symptom is caused by a tooth, gum, or alveolar bone structure that has undergone structural changes, it is less likely to be able to heal on its own and requires prompt medical attention for treatment.