The first aspect is the color of the leukorrhea, which is transparent and colorless because it is mainly secreted by the endocrine glands of the vagina and ovaries. This is a normal color. This is because the hormone levels in women’s bodies are different and the metabolic products are slightly different, which can lead to a darker color of the leukorrhea during pregnancy, but it is normal. The second aspect is the nature of the leucorrhea, which is slightly sticky in normal women when they are pregnant and thinner like egg white in women who are not pregnant. After pregnancy, due to the hyperfunction of the endocrine system, the leucorrhea can become more viscous. The third aspect is that the amount of leucorrhea increases, which is related to the high metabolism and hormonal secretion in the body.