白带,即阴道分泌物,为来源于女性生殖道不同部位的各种不同物质成分所组成的混合物,由液体成分和细胞成分两部分组成。主要的液体成分是阴道壁的渗出物、宫颈管分泌的粘液以及由外阴的前庭大腺、汗腺和皮脂腺分泌的少量粘液;主要的细胞成分有阴道鳞状上皮细胞、少量宫颈管柱状上皮细胞,以及阴道 Leucorrhea, vaginal discharge, derived from the female reproductive tract in different parts of the composition of a variety of different substances consisting of a mixture of liquid and cellular components of two components. The main liquid components are vaginal wall exudate, cervical canal secretion of mucus and by the vestibular gland, sweat glands and sebaceous glands secrete a small amount of mucus; the main cell components are vaginal squamous cells, a small amount of cervical columnar epithelial cells , And vagina