Women in pregnancy are prone to physiological ankle and dorsalis pedis oedema due to the enlargement of the uterus compressing the right inferior vena cava, obstruction of venous and lymphatic return to the lower limbs, fluid accumulation and an increase in physiological metabolic hormones, accompanied by an increased blood volume load. The oedema usually subsides after delivery, but some pregnant women have pathological oedema such as kidney damage, which needs to be differentiated for disease.