infection of umbilicus

例句：

1. 1.The patient's umbilicus was infected with bacteria.
   患者的脐部被细菌感染了。
2. 2.Doctors recommend washing the area around the umbilical cord to prevent infections.
   医生建议清洗脐带周围的区域以防止感染。
3. 3. The baby's umbilicus is healing well, but it's important to keep it clean and dry.
   宝宝的脐部正在愈合得很好，但保持清洁和干燥是很重要的。