Hair Transplant Density Limitations

What are the factors that affect your hair transplant density is a very important question and each patient coming to us for hair transplant is concerned about this very important factor.

This article elaborates about the factors which determine the density of your hair transplant along with its limitations and how we as doctors and hair transplant surgeons work around these important factors to give you the best possible hair transplant results in terms of density. 

Why a dense looking hair transplant result is important.

This is important because when your hair transplant result is dense it gives you a natural and youthful appearance. In case if you have existing hair, it is very important for us to give you a hair transplant result which matches with the result of your existing hair.

So basically, in a nutshell, a dense looking hair transplant result looks much better than a sparse result. Also, a lot of patients are interested in getting a very dense hair transplant result these days.

What is the density of our natural hair? 

The density of your natural hair, which is there on your scalp is around 80 to 100 grafts per square centimeter (sq cm) or you can say it is around 150 to 200 hair per square centimeter (sq cm). This is because each graft or a follicular unit contains around 1 to 4 hair. 

When does the baldness become visible?

An important point to note here is that once a person loses his 50 per cent of the hair then only baldness starts to show. So in the simple words, it can be said that till that limit of 50 percent your hair loss will not be noticed by any other person.

Once you lose more hair after this limit of 50 to 60% (varies from Patient to Patient),  other people will start noticing your hair loss and hence the baldness.

With hair transplant, even if we are able to achieve a density of around 35 to 50 grafts per square centimeter (sq cm) then also we are able to achieve very good and dense results. 

Now, you can ask me why are you not doing hair transplants with density of more than 50 grafts per square centimeter (sq cm). It is because there are many important to factors which limit us from not going beyond the density of 50 grafts per square centimeter (sq cm). 

Picture of hair transplant with high density front look

The first is the recipient area limitations.

In male-pattern hair loss the crown area will become gradually bald. So as you lose your hair this area also loses its balance of the diet. A bald scalp is low in terms of the number of blood vessels. When we are doing hair transplants we have to make small incisions in the recipient area to place those grafts.

We try to limit ourselves to around 35 to 50 incisions per square centimeter (sq cm) area because when we make more incisions, it is possible that these incisions will interfere with the blood supply of the skin. So more number of incisions will further damage the skin.

To avoid this damage we try to limit the number of incisions and try to implant not more than 35 to 50 grafts in a square centimeter (sq cm) area. We also limit ourselves to this limit of 35 to 50 yards per square centimeter (sq cm) because if we go beyond this limit these grafts will compete with each other for the nutrition and every graft will not be able to grow. So the standard limit is 35 grafts per square centimeter (sq cm). 

How do we decide whether we should make 35 grafts per square centimeter (sq cm) or 50 grafts per square centimeter (sq cm) totally depends on the size of your grafts. So to accurately measure the size of your grafts we take out around 45 grafts from the donor area at the beginning of the surgery.

We take out these grafts to measure their length and the width using a scale. And once we are sure about what is the length and thickness of the graft we then make our blades, then using those blades we make the incisions in the recipient area.

Now suppose if you are having grafts which are very long or very thick-thin, the size of the blade will also be very long. If we make the incisions in the receipt area using that blade then the size of the incision will also be very big and if we make a lot of incisions, then the chances of damage to the skin will be very high. So t avoid such scenario we try to make less number of incisions for those who are having thick or long grafts.

Now going to the next example if somebody is having a very thin or very short graft then the size or length of the blade will also be very small. Then using that small blade we get a chance to make more number of incisions because smaller incisions will not damage the blood supply to the skin. In such cases, we can go until 45 or 50 grafts per square centimeter (sq cm). 

The second factor is the Donor area limitation. 

Basically when we try to achieve densities of around 80 to 100 grafts per square centimeter (sq cm) in the recipient area, then we will have to take out everything from the donor area. So to avoid that overconsumption of donor area. We limit ourselves to 35 to 50 grafts per square centimeter (sq cm).

This thing also helps us in preserving the donor area for the future transplants in some other area if somebody requires that. So despite the presence of lots of limitations, we have to work around these limitations to achieve good-looking and very dense hair transplant results. 

Picture of hair transplant with high density side look

What can we do to achieve very dense hair transplant results?

  1. First, we aim at implanting at very flat angles.
  2. Second, we try to implant at converging angles. 
  3. The third is we try to do immediate implantation. 

So by doing these three things we are able to achieve dense hair transplant results with lesser number of grafts.

Let us discuss each one of the factors one by one in detail.

Hair Implantation at a flat angle

In hair implantation at a flat angle when we are making the slits on the receipt area, we make it at a very flat angle so that the hair which comes out through the scalp. It should travel as parallel to the scalp as possible and it takes a curve. So this hair will give us more coverage.

Hair Implant at converging angles

The second factor that we need to discuss is converging growth. When we are making slits on the receipt area we make or we place the grafts in a converging manner. So when the hairs are growing they converge towards the centre and the density will be high. And if we implant the grafts in a diverging manner, the recipient area will become less dense.

Immediate hair implantation

The third important factor which plays a major role in achieving a very dense hair transplant is immediate implantation. 

In immediate implantation, while doing the graft extraction we simultaneously implant the extracted grafts in the recipient area within 2 to 3 seconds. 

One more important factor in the recipient area is that the central area should always get triple hair or three hair grafts. As this area is a cosmetically most important area and the blood supply here is a little less. So to avoid making a lot of incisions we try to implant triple hair grafts or three hair grafts. 

In the end, we would like to add one more thing that patients with very thin hair may require hair transplants with densities more than 50 grafts per square centimeter (sq cm). In such patients, it is always better that we plan the hair transplant surgery in two sessions. In the first session, we can make incisions till 35 to 40 or maybe 50 grafts per square centimeter (sq cm) and in the second session, we can further increase the density to give a better-looking hair transplant results.

So this was all about factors that determine the hair transplant density. If you have any other query or question related to hair transplant, you can you contact us at +91 9821622240. We will be very happy to answer all your queries.