The evaluation of gingivitis begins with a medical history and physical examination.

Physical findings in someone with gingivitis may include:

• Mouth swelling:
• Swollen gums
• Gum redness
• Gum tenderness
• Bleeding gums
• Dental carries
• Dental plaque
• Dental tenderness:
• Pain when you tap on a tooth
• Swollen glands in the neck

Physical findings in someone with worsening gingivitis include:

• Face swelling
• Fever

Tests that may be used to evaluate gingivitis include:

• Dental x-rays
• Needle aspiration may be needed to detect a questionable dental abscess.