Gender of the forehead
The male has more brow bossing (the ridge above the eyes) and a forehead that steeply angles away from the eyes. The female forehead is typically rounder in all dimensions and almost never has a prominent brow bone. In profile, female foreheads are more vertical instead of backward sloping.
A side effect of browridge contouring combined with a browlift is a large surplus of forehead skin. That is why the approach to the forehead is done through in incision just inside the hairline so the skin surplus can easily be excised.
Man skull
- Prominent brow bone.
- Forehead that angles more steeply away from the eyes.
Female skull
- No prominent brow bone.
- More vertical forehead.

- Hollow flat spot above the nose.
- No hollow flat spot above the nose.


Feminizing the forehead
Keep in mind that the bridge of the nose and the forehead are best done together, because after removal of the frontal bossing it is important for the upper nose to integrate smoothly with the new forehead.
Forehead recontouring is a procedure that involves brow shaving and surgically altering the bone.
The outer segments of the bossing that the eyebrows sit on are called the “supraorbital rims”. These are solid bone and can simply be filed down.
The section of bossing between the eyebrows (the glabella) sits over an area called the frontal sinus. Because the frontal sinus is hollow, it is more difficult to remove bossing there. It involves removing this plate of bone, reshaping it, and placing it back in position with small titanium screws to hold the bone in place while it heals.

Classification Ousterhout
Dr Ousterhout, the father of Facial Feminization Surgery, describes mainly three types of forehead operations: “Type I”, Type II”, “Type III”. He also mentioned a type IV operation for patients with a malformation of the forehead, but that is only in the rarest of cases.
Type I
Type I procedure is performed with patients only having a small amount of brow bossing, very thick bone or no frontal sinus at all. In this case the excess amount of bone is just burred away, without entering the frontal sinus. A lot of surgeons today can do only this: they burr away that small amount of bone and call it “feminization of the forehead”. Only a small percentage of patients will have a reasonable result with this technique.


Type II
Dr Ousterhout describes a technique that he uses when the projection angle between the nose and the forehead is already satisfying. Only the concavity after the bossing he will address in that case. He fills the concave area above the bossing with methyl methacyrlate. As we have good results with our combined type I – type III procedure, we choose not to use this technique because by introducing a foreign material into a body there is always a risk of infection.


Type III
The forehead recontouring procedure we perform the most (is most indicated) is the procedure that is called ‘type III’ procedure by Dr Ousterhout. During this procedure the anterior wall of the frontal sinus bone is removed, remodeled an put back.


Procedure
- General anesthesia is given.
- An incision is made along the hairline. The incision is made just like in scalp advancement surgery.
- The forehead skin is pulled forward to reveal the bone.

- The boneplate over the frontal sinuses is removed, thinned until the desired thickness is achieved and reshaped.
- Then the solid orbital rims are shaved.
- Finally the refined boneplate is fixed in place with titanium microscrews. The heads of the screws are removed so they cannot be felt or seen through the skin.
- As in scalp advancement, the skin is fixed to the bone using Endotines to prevent it from pulling back.

Recovery
- Hospital— You will spend one night in the hospital following surgery.
- Pain—Pain may occur for a few days, which is controllable with normal painkillers.
- Work—Many patients can go back to work within two to four weeks following surgery.
- Sport—Avoid physical activity that causes sweating or a rise blood pressure for eight days.
- Sutures— Sutures are self-dissolvable. They dissolve in about a week time.
- Forehead Numbness— Expect your forehead to be numb for about 3 months.


