Hi, Thanks for writing in. Cell multiplications take place continuously in us from birth until we die. This occurs in a programmed and regular way. At times the DNA in the cell gets changes due to many factors in a single cell and it changes its features and subsequent multiplication of the abnormal cells causes a mass of abnormal tissue which is called a cancer. During transition for normal to abnormal, the cell goes through a transition period when it is neither completely normal nor fully abnormal. These cells retain features of both normal and abnormal cells. These are called precancerous cells. It is believed that you have these transition cells in your uterus and this might be causing your painful bleeding; the smear shows the presence of these cells. To be doubly sure about your condition, your doctor wants to do a D and C and then proceed with a hysterectomy. If hysterectomy is not done then the precancerous cells might transform into cancer cells and cause more discomfort and might become difficult to treat but confirmation i required before that. It is best to go by step wise method than go straight for hysterectomy. Please do not worry.