Hyperplasia -

This occurs when the lining of the uterus (the endometrium) becomes abnormally thick. Endometrial Hyperplasia - StatPearls - NCBI Bookshelf - NIH

Hyperplasia is generally divided into two main categories based on how the cells look under a microscope: hyperplasia

The cells look abnormal or "atypical." This is considered a precancerous condition and carries a significantly higher risk of progressing to cancer if left untreated. 1. Endometrial Hyperplasia (Uterus) This occurs when the lining of the uterus

The cells look normal but are more numerous than they should be. This type carries a low risk of becoming cancer. hyperplasia