This is because sperm can still linger in ejaculate for about three months after the procedure.
you’re able to expect some bruising, swelling, and drainage.
The bruising may even extend to the penis.

Verywell / Hilary Allison
Overdoing it can cause pain and bleeding inside the scrotum.
you could manage pain and swelling by applying an ice pack to the scrotum.
Over-the-counter pain relievers like Tylenol (acetaminophen) orAdvil (ibuprofen)can also help.
you’ve got the option to help stabilize the testicles by wearing a jockstrap or tight-fitting underwear.
It is usually old blood, and nothing to worry about.
Libido(sex drive), testosterone level, anderectionsshould not be affected by a vasectomy.
By 10 weeks, 85% of males will have no sperm in their ejaculate.
For your analysis, you will have to provide your healthcare provider with a semen sample.
You would do this by masturbating into a specimen container.
You will be provided with a private space to do this.
Johnson D, Sandlow JI.Vasectomy: tips and tricks.Transl Androl Urol.2017 Aug;6(4):704-9. doi:10.21037/tau.2017.07.08.
Alberta Health Services (Canada).Vasectomy: what to expect at home.