Vasectomy is usually performed as an outpatient procedure, and you can leave the clinic the same day. You will need to rest for around 24 hours after the procedure and avoid sports, heavy lifting, or other strenuous activities for a week afterwards. You will also need to refrain from bathing or swimming for at least 24 hours. You may return to sexual activity after one week, although the procedure may not be effective right away (see above). If you ejaculate before one week, you may have pain or find blood in your semen.