Hemorrhoids are swollen veins situated in the lower rectum and anus.  These can result from excessive pressure on these veins, often attributed to prolonged straining during bowel movements.
Symptoms include itching, 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/