I scratched my scrotum and it started bleeding Lil bit. Does that mean semen or sperm was in the blood leaking from scrotum? Thanks

No. The scrotal skin does not leak sperm. Whether you cut your finger, your foot, or your scrotum, you will lose blood but not sperm. There is no sperm coming through the scrotal skin.
No. The testicles and the channels through which sperm travels are well protected and are separate from the scrotal sac.
Scrotal bleeding. It is likely that when you scratched your scrotum and it bled you were just involving the skin and neither sperm or semen were involved.