Sticky phlegm in the throat all the time during pregnancy may be related to gastroesophageal reflux disease (GERD), nasal disorders, and throat disorders. 1. Gastroesophageal Reflux Disease (GERD): During pregnancy, as the uterus increases in size, it squeezes the stomach, intestines and other organs, which may affect the normal digestive and absorption functions, leading to acid reflux, which causes some irritation to the esophageal mucosa, and may lead to mucousy sputum in the throat during pregnancy. 2. Nasal diseases: If you don’t pay attention to personal hygiene or live in a dusty environment for a long time during pregnancy, it may lead to rhinitis, sinusitis and other nasal diseases, and localized inflammatory stimuli can lead to increased secretions. Nasal and pharyngeal cavities are connected, can lead to the throat inside always have sticky phlegm. 3. Throat disease: women during pregnancy is relatively weak, easy to suffer from tonsillitis and other throat diseases, local inflammatory stimuli can also lead to an increase in secretions, so that there is always sticky phlegm in the throat during pregnancy. If the sticky phlegm in the throat is not relieved during pregnancy, you can go to the obstetrics and gynecology department or respiratory department of the hospital in order to clarify the cause of the disease, and do not take any medication without authorization, so as not to cause adverse effects on the pregnant woman and the fetus.