If you are suffering from total baldness, you’ll need a hair transplant operation to implant hair on your entire head. For a full head hair transplant, you’ll need between 4,000 and 6,000 grafts. Remember that hair quality varies, so if your donor area hair is of high quality, then 4,000 grafts will do the job. But if your donor area hair is of low quality, your surgeon may extract 5,000 or 6,000 grafts for the job.
However, despite this estimation, the actual number of grafts extracted will depend on some other factors. For instance, your surgeon must extract just enough hair from the donor area so the site doesn’t get damaged and become bald. This is why it’s best to leave the math to your surgeon.