新生儿B组溶血性链球菌(GBS)疾病中最多见的是败血症和脑膜炎,较少见的还有化脓性关节炎、骨髓炎、中耳炎、乳房和头皮脓肿、腹膜炎,坏死性筋膜炎和面部蜂窝织炎/淋巴结炎等。本文首先报道2例由GBS引起的新生儿咽后壁蜂窝织炎。病例例1女婴,9天。因食欲减退,呼吸有鼾声1天入院。足月顺产、母乳喂养体重3.5kg,体温38.5℃,心率120次/分,呼吸48次/分。右颌下有一2×2cm之红肿块,有触痛。血常规:血红蛋白128g/L,白细胞5.6×10~9/L、杆状60%、中性21%、淋巴13%、单核5%、嗜酸1%。脑脊液和胸片正常。颈伸展侧位片见咽后隙增宽,提示咽后脓肿或蜂窝织炎。给予静滴二甲氧苯青霉素200mg/kg/d和 Sepsis and meningitis are most common in neonatal group B hemolytic streptococcal (GBS) disease, and septic arthritis, osteomyelitis, otitis media, breast and scalp abscesses, peritonitis, necrotizing fasciitis are less common And facial cellulitis / lymphadenitis. This article first reported two cases of neonatal posterior pharyngeal cellulitis caused by GBS. Case 1 Baby girl, 9 days. Due to loss of appetite, snoring 1 day admitted to hospital. Full-term natural delivery, breastfeeding weight 3.5kg, body temperature 38.5 ℃, heart rate 120 beats / min, breathing 48 beats / min. Right under the jaw there is a 2 × 2cm of the red mass, tenderness. Blood: hemoglobin 128g / L, white blood cells 5.6 × 10 ~ 9 / L, rod 60%, neutral 21%, lymphatic 13%, mononuclear 5%, 1% eosinophilic. Cerebrospinal fluid and chest X-ray normal. Lateral extension of the neck see the retropharyngeal space widened, suggesting post-pharyngeal abscess or cellulitis. Give intravenous methicillin 200mg / kg / d and