Lilies have a certain effect on pregnant women, as women are more sensitive to nerves during pregnancy and their body resistance is weaker. If frequent contact with lilies, during the period of pregnant women’s nerve sensitivity due to the strong fragrance of lilies will cause stimulation of the nerves, prone to dizziness, nausea, vomiting, headache and other uncomfortable symptoms. Strong floral scent will also cause stimulation to the gastrointestinal tract of pregnant women, prone to loss of appetite. Pregnant women need to intake of nutrients, loss of appetite is not conducive to eating and fetal absorption of food, long-term fetal growth and development will have an impact on the health of pregnant women. It is recommended that pregnant women avoid contact with plants with a strong flavor during pregnancy, especially more sensitive women to take protective measures when necessary, such as wearing a mask.