It is not normal for patients to pull blood after using corkscrew, blood in the stool after using corkscrew, may be related to the patient’s improper use of corkscrew, blood in the stool symptom caused by local diseases of the anus, etc., as follows: Firstly, the improper use of corkscrew: in the process of the use of corkscrew is not sufficiently lubricated the anal canal, and damage to the skin of the anus canal or mucous membranes of the rectum during the process of plugging the corkscrew, which may lead to localized bleeding, thus resulting in blood in the stool Symptoms. Second, blood in stool symptoms caused by local anal diseases: most patients who need to use corkscrew will be accompanied by difficult defecation, dry stools and other symptoms, coarse and hard stools, in the process of discharging the anus may be squeezed hemorrhoids hemorrhoidal nucleus, resulting in hemorrhoids hemorrhoidal nucleus blood vessel rupture bleeding, but also may crack the skin of the anus tube and lead to anal fissure bleeding.