There is occult blood in the stool for the first time after polypectomy, considering that it may be related to the incision bleeding, titanium clip detachment, diet and other reasons. 1. Incision bleeding: During polypectomy, there will be a small amount of bleeding from the wound. The blood passes through the gastrointestinal tract and enters the stool, which may result in positive fecal occult blood. 2. Dislodging of titanium clips: If you have undergone polypectomy, strenuous activities may cause the titanium clips to dislodge, which in turn may lead to the exposure of blood vessels, and may also lead to the first positive fecal occult blood. 3. Diet: Eating foods such as duck blood and pig blood may lead to fecal occult blood. There may be other clinical reasons for the first positive fecal occult blood after polypectomy. It is recommended to go to the gastroenterology department of the hospital as soon as possible in order to clarify the cause of the disease, so as to avoid delay.