What Causes Nausea in the Third Trimester of Pregnancy?

Only mothers can truly appreciate the wonderful sensations of pregnancy. In the later stages of pregnancy, as the abdomen grows larger, daily activities may become increasingly inconvenient, and symptoms such as lower back pain, dizziness, and fatigue may occur. These issues warrant attention to avoid complications during delivery. So, what causes nausea in late pregnancy?

What Causes Nausea in Late Pregnancy?

Nausea in late pregnancy may result from anemia, hypoglycemia, or supine hypotensive syndrome. During pregnancy, plasma volume increases more rapidly than red blood cell mass, leading to relative hemodilution and a consequent decrease in red blood cell count and hemoglobin concentration—resulting in physiological anemia. Additional contributing factors include increased red blood cell turnover, fetal growth and development, maternal tissue and organ adaptations, and heightened iron requirements—all of which further predispose pregnant women to physiological anemia, manifesting as dizziness, fatigue, and weakness. Moreover, metabolic rate accelerates during pregnancy, increasing pancreatic blood flow compared with the nonpregnant state; consequently, pancreatic physiological function becomes markedly enhanced.

It is recommended to maintain a light, bland diet. Consuming moderate amounts of acidic fruits may effectively alleviate nausea and vomiting associated with pregnancy. This dietary approach is especially important during early pregnancy; consuming greasy or fatty foods may easily trigger nausea and vomiting.

Maintain healthy lifestyle and dietary habits in daily life. We hope this information proves helpful to you.