Signs and symptoms of gingivitis include: Swollen or puffy gums. Dusky red or dark red gums. Gums that bleed easily when you brush or floss Hyperplastic gingival lesions or strawberry gingivitis, is a characteristic sign of Wegener's granulomatosis. The latter consists of reddish-purple exophytic gingival swellings with petechial haemorrhages thus resembling strawberries.