b- Vasectomy: Vasectomy involves incision of the scrotal sac, transection of the vas deferens, and occlusion of both ends by fulguration or suture ligation. The procedure is usually performed with the patient under local anesthesia in an outpatient setting. Complications include hematoma formation and sperm granulomas. Spontaneous resolution is rare. After sterilization, remnant sperm remains in the ejaculatory ducts. The man is not considered sterile until he has produced sperm-free ejaculates as documented by semen analysis. This usually requires fifteen to twenty ejaculations. Vasectomy prevents the passage of sperm into seminal fluid by blocking the vas deferens. The failure rate is nearly 0.1% Vasectomy involves no hormones, is an outpatient …show more content…
For ten mg of mifepristone taken up to 120 hours (five days) after intercourse, the combined estimate from three trials was an effectiveness of 83% found that many trials found a regimen of 25–50 mg of mifepristone to have higher effectiveness. However, when reviewers looked at only high-quality trials, the difference in effectiveness was not statistically significant. HRA Pharma changed its packaging information for Norlevo (which has dosage and chemical makeup identical to many other EHCs) in November 2013 warning that the drug loses effectiveness in women who weigh more than 165 pounds and is completely ineffective for women who weigh over 176 pounds Women with irregular cycles for any reason (including recent hormone use such as oral contraceptives and breastfeeding) must be excluded from such calculations. Even for women included in the calculation, the limitations of calendar methods of fertility determination have long been