牛链球菌是食草动物消化道内的正常菌群，常见于牛的胃肠道和粪便，也可从人的胃肠道、粪便及食品中分离。它被认为是许多动物和人体内较为安全的菌群，但很多国内外研究报道其与感染性心内膜炎、结直肠肿瘤、泌尿系统疾病的发生相关。本文报道1例牛链球菌感染引起的扁桃体周脓肿及颈深部脓肿患者。该患者为老年男性，既往体健，起病急，感染不易控制。牛链球菌感染与咽部及扁桃体脓肿的发生少有报道，咽部及颈部的感染易致急性呼吸困难，危及生命，希望临床医师提高对此病的认识和重视。

Streptococcus bovis is the normal flora in the digestive tract of herbivores, common in the gastrointestinal tract and feces of cattle. It’s also a common bacteria in the human gastrointestinal tract, and can be isolated from gastrointestinal, feces, and the food. So, people always think it is harmless to many animals and human body. But many reports say it is related with infective endocarditis, colon cancer and urinary disease. Here we report one case of peritonsillar abscess and deep neck abscess caused by Streptococcus bovis infection.This patient was older, healthy, with acute onset of symptoms, and the infection was difficult to be controlled. Streptococcus bovis infection with throat and tonsil abscess is rarely reported. Because the acute respiratory problems caused by throat and neck infections is always life-threatening the doctors should pay attention to the infection.