Hemorrhoids present swollen veins found in the lower rectum and anus.  Those can result from excessive pressure to these veins, often due to chronic constipation.
Symptoms may range from itching, pain, bleeding https://www.facebook.com/proctologiaclinica/posts/sangue-nas-fezes-n%C3%A3o-%C3%A9-sempre-hemorroidaneste-carrossel-voc%C3%AA-vai-ver-em-poucos-c/1435381361464877/