In the 3rd week of december 2020 ,I had rectal bleeding for 5-6 days.After that ,every week there is a pattern like 1. 2-3 days ,there is no problem. 2. 1-2 days,i have to go to bathroom 5-6 times. 3.Morning stool is usually loose but no diarrhea. 4. Rectal bleeding has only happened 4-5 times in past 2.5 months. 5.There is swelling at the anus,which sometimes feel itchy and after i scrath it ,then bleeding occurs. 6.There is no pain in anus and stomach. 7.I feel muscle tightness in abdomen ,when i pressed it. 8.No weight loss in past 3 months,stable weight. 9.No lethargy