Some of the risk factors include being older, obesity, health history, and ethnicity. The older the pregnant mother, the higher her risk. For individuals older than 30, there is a higher chance of diagnosis. Being overweight, more specifically a BMI over 30 is also a risk factor. If the mother, or her family, have a history of type 2 diabetes or if there was an occurrence during a previous pregnancy, then the risk is higher. While there is no indication as to why, minorities are more likely to develop gestational diabetes.
As for symptoms, these can be scarce or non-existent. However, if the mother is experiencing symptoms similar to type 2 diabetes then this could be a sign that you have gestational diabetes. Some of the symptoms are similar to those of pregnancy and may be difficult to differentiate. These include an increase in thirst, frequent urination, fatigue, hunger, recurring bladder or vaginal infections, excessive weight gain, and blurry vision.