I have been diagnosed with thick endometrium lining. I am premenoposal at 48 years old. On occasion,,,I will have a normal period,,then it will return 2-3 days after stopping and will continue another few days. My doctor said that we will keep track of this and when it happens again, she would want me to have another ultrasound and take it from there. I did have a biopsy and ultrasound for this problem 2 years ago. The biopsy was normal and the ultrasound revealed the thickening of the unterine lining. I am now concerned since I read that this could lead to abnormal cells developing and cancer. Should I be more proactive in getting this taken care of or should I just wait until the abnormal bleeding happens again? I'm concerned.