Hello im a boy um from spain Since one week

Patient: Hello im a boy um from spain. Since one week im having this itchy ass and I have started noticing some black Tony thing whenever I clean my anus. Some black thing which looks like some tiny wool, I sont see it moving. Two weeks before i had sex and I was bleeding little, but it stopped and never bleed again. It did not pain me either. Is it anything related to it. Please tell me. My anus itches and I want to get rid of this black tiny things.