Difference between cancer and polyps

So I have had irregular bleeding for 6-7 months getting worst. Have never had smear 28 but hav recently bn to doctors about it who are getting me bk in two weeks to try n do smear put me on mini pill which has made bleeding worst. on my cervix I can feel lots of lumps on one part sorry if tmi. I also hav hip pain which is keeping me awake and changing from side to side to top it all of I now hav unexplained bruising. My question is is there any different symptoms from cervical polyps to cervical cancer thanksĀ