Hypoglycemia is most commonly seen in patients with type 2 diabetes. During the treatment of diabetes, hypoglycemia can occur due to excessive use of medication or insulin, failure to eat on time after exercise, or decreased appetite without appropriately reducing the medication. Another common cause is insulinoma, a type of tumor that secretes excessive insulin, resulting in lowered blood glucose levels. A third cause relates to the early stage of type 2 diabetes, where insulin resistance and delayed insulin peak times often lead to pre-meal hypoglycemia, especially before lunch and dinner. Lastly, hypoglycemia is also commonly observed in some young women with specific coloring, potentially due to gastrointestinal motility issues or other reasons leading to pre-meal hypoglycemia. It is also common in patients with hepatitis or cirrhosis, where the liver's ability to output glucose is diminished, increasing the risk of hypoglycemia when fasting.