Endometrial hyperplasia is a condition characterized by the thickening of the uterine lining (endometrium), primarily categorized into two types based on the nature of cell changes:

1. Non-atypical Endometrial Hyperplasia: In this type, a normal-looking growth of cells is observed, which does not carry a risk of cancer. It does not contain abnormal or unusual cells. Regular monitoring of this condition is important.
2. Atypical Endometrial Hyperplasia: This type is characterized by the overgrowth of abnormal cells and is considered a precancerous condition. If left untreated, the risk of developing endometrial or uterine cancer significantly increases.

Accurate diagnosis and the determination of the hyperplasia type are crucial for managing cancer risk and selecting the most appropriate treatment method.