Why is an excessive weight gain during pregnancy undesirable? Give answers in a simple terms.

1. Health risks: Excessive weight gain during pregnancy can increase the risk of complications for both the mother and baby, such as gestational diabetes, high blood pressure, and pre-eclampsia.

2. Difficulty during labor and delivery: Women who gain too much weight during pregnancy may have a harder time during labor and delivery, leading to potential complications or the need for medical interventions.

3. Postpartum challenges: Losing the excess weight gained during pregnancy can be difficult and may lead to long-term health issues such as obesity and related conditions.

4. Impact on baby's health: Babies born to mothers who have gained too much weight during pregnancy may be at a higher risk of being born prematurely, having a higher birth weight, or developing health issues later in life.