bleeding gums

基本解释

I have bleeding gums.
我的牙龈出血。
A disease caused by deficiency of vitamin C, characterized by spongy and bleeding gums, bleeding under the skin, and extreme weakness.
一种由于缺少维生素C引起的疾病，症状为多孔的和爱流血的牙床，皮下出血和极度虚弱。
odict.net
Periodontal disease manifested as gingival inflammation, gingival ulcers, gingival necrosis and loosening of teeth, bleeding gums and emerging symptoms such as pain and malignant transformation.
牙周病表现为牙龈发炎、牙龈溃疡、牙龈坏死以及牙齿松动，并可出现牙龈出血疼痛和恶变等症状。

Cambara remembers his gums bleeding prolifically and receding wastefully at a phenomenal rate, the inflammation, combined with the irritation on account of the tartar deposits, causing the loosening of several of his teeth.
NPR: Somalia's Farah: Humanizing a Broken Place
And the laser cuts gums without causing much bleeding.
FORBES: A Painless Root Canal?
The sailor was dirty and salty, but he wasn't hungry, and thanks to all the lime juice he'd drunk his gums weren't bleeding, his hair was still rooted, his breath wasn't as foul as it might be, and his lips were pinker than black.
NPR: Excerpt: 'Natives and Exotics'