In the case of endometrial hyperplasia usually a Pap smear is done, also a biopsy during the pelvic examination, may be done of the individuals endometrial tissue. You may want to consult your doctor for further examination.

In regards to Cushing's disease, the diagnosis of salivary cortisol in an elevated level around "late-night" is a way to detect it in many patients.

Hyperplasia is considered to be a physiological (normal) response to a specific stimulus, and the cells of a hyperplastic growth remain subject to normal regulatory control mechanisms. However, hyperplasia can also occur as a pathological response, if an excess of hormone or growth factor is responsible for the stimuli. Similarly to physiological hyperplasia, cells that undergo pathologic hyperplasia are controlled by growth hormones, and cease to proliferate if such stimuli are removed. This differs from neoplasia (the process underlying cancer and benign tumors), in which genetically abnormal cells manage to proliferate in a non-physiological manner which is unresponsive to normal stimuli. That being said, the effects caused by pathologic hyperplasia can provide a suitable foundation from which neoplastic cells may develop.