The most important factor that decides the need for hysterectomy
is symptoms. If you are having any symptoms, then you have two options - medical and surgical.
Since you are 50 yrs, you must be about to reach menopause
, or may have already attained it, you can opt for medical treatment. You will be given monthly or weekly injections, which will relieve you of symptoms, but they will not treat the fibroids. The fibroids will still be there, but they will not cause any symptoms.
If you are symptomatic you may also opt for hysterectomy. If the ovaries are found normal at the time of surgery, then opt for preservation of ovaries.
One important thing, if you go for medical treatment, then you must get the polyp removed by D&C and get a histopathology done. The polyp may be hiding some malignancy.
Hope I have answered your query.