Hi its a health (uterus) related question?

Hi My mum is 48yrs and recently she's had her periods which were quite heavy.When she went to the doctors,she was told she would have o get some tests done immediately.She had an ultrasound done today and also a pap test for which the results are not yet out.In the ultrasound test her uterus seems to be enlarged and the right ovary as well.she has a lot of pain in her abdominal region.I'm sorry i'm not being very clear she is in india and i'm in the uk,and very worried and cant understand most of the medical terms so have had to look up on google for everything.They did mention something about cyst and also bulky uterus and suggested her to under go an operation and rest for 3months after that.Pls can anyone tell me whats actually going on and also is it to do with some form of cancer? or is it something most women undergo during premenopause?Thanks for all your help.