The first thing I look at on a neck isn’t the skin.
If your neck looks full and your jawline looks soft, it is easy to assume the problem is fat, loose skin or simply aging. Sometimes it is. But I also see patients who are relatively thin, have lost weight, or have never had much fat under the chin and still do not have the sharp neck angle they expected.
In those patients, I start looking deeper.
One of the structures I examine is the hyoid bone. Its position in the neck can have an enormous influence on the angle beneath the jaw and on how much definition I can realistically create with a deep neck lift.
This is something I actually feel for during a consultation. I want to know where your hyoid sits because it tells me two things: what kind of neck you are starting with and how much work may be necessary to improve it.
A full neck is not always a fat problem. Sometimes it is an anatomy problem.
UNDER THE JAWLINE
What Is the Hyoid Bone?
The hyoid is a small U-shaped bone in the upper neck. What makes it unusual is that it does not form a conventional joint with another bone. It is suspended by muscles and other soft tissues and has important relationships with the tongue, jaw and larynx.
It is involved in swallowing, speech and airway function. For me as a facial plastic surgeon, it is also an important landmark when I am evaluating the contour of the neck.
The area patients usually describe as their “neck angle” is called the cervicomental angle. It is the transition from the underside of the chin into the front of the neck.
The position of the hyoid is one of the anatomical factors that influences that angle.
STARTING ANATOMY
Why Hyoid Position Changes the Neckline
A patient with a relatively high hyoid often starts with a more favorable relationship beneath the jaw. Even when that patient develops loose skin, muscle laxity or other signs of aging, the underlying anatomy may already support a sharper neck angle.
A lower hyoid is different. It can contribute to a more open or obtuse angle between the chin and neck. That can make the neck appear fuller or shorter even when the patient is not overweight.
That does not mean a patient with a low hyoid cannot have a defined neck. It means I have to recognize the anatomy before surgery and plan around it.
A higher hyoid generally provides a more favorable starting point for creating a sharp transition between the jaw and neck.
High Hyoid
A lower hyoid can contribute to a fuller, more open neck angle and may require substantially more deep-neck work to improve.
Low Hyoid
The position of the hyoid gives me important information about the neck you are starting with and how much definition I can realistically create.
Why a Full Neck Isn’t Always Fat
This is where neck contour becomes more complicated than it appears from the outside.
There can certainly be fat immediately beneath the skin. But there can also be fat beneath the platysma muscle. The digastric muscles can contribute to central neck fullness. The submandibular glands can be prominent. The chin and jaw can provide more or less skeletal support. And the hyoid can sit higher or lower in the neck.
Several of those things can create a similar appearance from the outside.
That is why simply removing more fat is not always the answer. If the fullness I am looking at is being created by deeper anatomy, treating only superficial fat does not correct the actual problem.
The question isn’t how much tissue I can remove. The question is which structures are actually creating the neck I see.
TWO DIFFERENT NECKS
Why the Same Neck Lift Doesn’t Produce the Same Neck
These two patients are a good way to understand what I mean.
The first patient started with a relatively high hyoid. Even before surgery, she had favorable anatomy for a defined neck angle. She still had loose skin and soft-tissue laxity that needed to be corrected, but the underlying framework gave me a very good starting point.
The second patient started with a much lower hyoid and a substantially more open neck angle. That does not make her a bad surgical candidate. It means I have to do more work in the deep neck and be realistic about the anatomy I am starting with.
Consented patient with a favorable high hyoid position, allowing a naturally sharper, more defined neck angle.
Favorable High Hyoid
Consented patient with a lower hyoid position, which creates a fuller starting neck angle and influences the final contour even after deep neck surgery.
Lower Hyoid
Those differences matter because I do not want to promise the second patient the first patient’s anatomy.
What I can promise is that I am going to recognize the difference before surgery and plan the surgery accordingly.
DEEP NECK SURGERY
A Low Hyoid Doesn’t Mean You Can’t Have a Defined Neck
This is an important distinction because I do not want patients walking away from this discussion thinking the hyoid is completely fixed and there is nothing I can do about it.
In selected patients, I can influence the position of the hyoid to a degree. But I do not accomplish that by simply pulling harder on the skin or putting the neck under more tension.
I have to create the anatomical conditions that allow the deeper structures to move.
Depending on what I find, that can mean reducing central subplatysmal fat, addressing prominent submandibular glands and working with the muscles that influence the hyoid.
In a patient with a low hyoid, one of the maneuvers I may use is selective division of portions of the infrahyoid musculature. These muscles exert a downward pull on the hyoid. Reducing some of that depressive force allows the muscles above the hyoid to act with less opposition and can permit some superior movement.
But there also has to be room for that movement. If the deep central neck is crowded with fat or prominent submandibular glands, those structures may need to be addressed as part of the same surgical plan.
INSIGHTS FROM DR. ATHRÉ
How the Hyoid Bone Affects Neck Contour
I explain how I evaluate hyoid position, why it changes the potential for neck definition and the deeper surgical maneuvers I may use in a patient with a low hyoid.
What a Deep Neck Lift Actually Changes
This is why I distinguish a deep neck lift from a procedure that primarily tightens skin or removes superficial fat.
During a deep neck lift, I can evaluate and, when appropriate, address structures beneath the platysma that contribute to fullness and poor definition. That can include subplatysmal fat, the digastric muscles and prominent submandibular glands.
Not every patient needs every maneuver.
A patient with favorable anatomy may need considerably less work than someone with a low hyoid, significant deep-neck volume and prominent glands. The operation should follow the anatomy rather than a checklist.
That is also why liposuction alone can be disappointing in the wrong patient. Liposuction can be useful when superficial fat is truly the problem. It cannot remove a prominent gland, change a digastric muscle or solve a deeper structural problem simply by removing more superficial fat.
Why I Don’t Just Pull the Neck Tighter
One of the points I make in the video is that a difficult neck cannot be solved by simply pulling harder and tying everything down under more tension.
The platysma can help support and shape the neck, but I do not want it fighting against excessive deep volume or anatomy that has not been addressed. If I am asking a relatively thin muscle layer to hold everything up under significant tension, I am relying on tension rather than correcting the underlying problem.
That is not how I want to build a neck result.
I would rather reduce the forces working against the contour, address the appropriate deep structures and then use the platysma as part of a more complete reconstruction.
A sharp neck should come from correcting the anatomy, not from seeing how tightly I can pull the skin.
Where the Facelift Fits In
The neck does not exist separately from the lower face.
If a patient also has jowling, loss of jawline definition and descent through the face, I may combine deep neck work with a deep plane facelift. The facelift allows me to reposition deeper facial tissues while the neck surgery addresses the structures creating fullness and poor definition below the jaw.
In my 4D Facelift™, I am looking at the face more broadly: lift, volume, skin quality and the relationship between the face and neck.
The point is not to perform more surgery. It is to make sure I am treating the structures responsible for what the patient actually sees.
REALISTIC EXPECTATIONS
Why I Talk About the Hyoid Before Surgery
I spend time explaining this because two patients can undergo very sophisticated neck surgery and still have different necklines afterward.
That does not automatically mean one surgery was better than the other.
They may have started with completely different anatomy.
When I evaluate the aging face and neck, I am looking at hyoid position, chin and jaw support, superficial and deep fat, the digastric muscles, submandibular gland prominence, platysma anatomy, skin quality and the relationship between the face and neck.
I would rather show a patient those differences before surgery than explain them after surgery.
Good neck surgery starts with understanding what anatomy will allow. Then I decide how much of that anatomy I can safely and effectively improve.
The Takeaway
If you have always had a fuller neck despite being at a healthy weight, the answer may not simply be more fat removal.
Your hyoid position, deep neck fat, digastric muscles, submandibular glands, chin projection and other anatomical relationships can all influence what you see beneath the jaw.
A lower hyoid can make the neck more challenging, but it does not mean meaningful improvement is impossible. It means I need to recognize the anatomy, understand what is creating the contour and choose the surgical maneuvers that make sense for that particular neck.
That is the larger lesson here. Neck rejuvenation is not just about tightening skin.
It is about understanding what is underneath it.
BEFORE & AFTER
Neck Lift Results
FREQUENTLY ASKED
Hyoid Bone and Neck Lift FAQs
A full or poorly defined neck can come from several different anatomical structures. These are some of the questions I hear when patients are trying to understand why their neck looks the way it does and what surgery can realistically change.
What is the hyoid bone?
The hyoid is a small U-shaped bone in the upper neck. Unlike most bones, it does not form a conventional joint with another bone. It is suspended through muscular and soft-tissue attachments and participates in swallowing, speech, respiration and other functions. A detailed review of hyoid anatomy and physiology describes these relationships and why the hyoid is such an unusual structure.
Can a low hyoid make my neck look full even if I am thin?
Yes. Fat is only one factor that determines neck contour. A low-set hyoid is recognized as one of the anatomical features that can contribute to a more difficult neck and a more obtuse cervicomental angle. Reviews of the anatomically difficult neck specifically identify low hyoid position along with deep tissue volume and skeletal support as factors that can limit neck definition.
Does a low hyoid mean I cannot get a sharp neck?
No. It means I need to account for that anatomy when I plan the surgery and when I discuss expectations with you. A cadaveric study evaluating neck-contouring maneuvers found that low hyoid position significantly influenced the postoperative cervicomental angle. In clinical practice, however, deep-neck surgery gives me several ways to improve the structures surrounding the hyoid and, in selected patients, influence its position to a degree.
Can the hyoid bone actually be moved during neck lift surgery?
To a degree, in selected patients. I do not think of this as moving the hyoid to an arbitrary new location. I am working with the anatomy around it so the hyoid and central neck can assume a more favorable position. Published deep-cervicoplasty literature also describes reductional sculpting and repositioning of the hyoid as part of neck-lift surgery in appropriately selected patients.
Why doesn’t neck liposuction fix every full neck?
Because not all neck fullness is superficial fat. There is also fat beneath the platysma, and deeper structures such as the digastric muscles and submandibular glands can contribute to the contour. Anatomical studies demonstrate distinct superficial and deep fat compartments in the neck. If the fullness I am seeing comes from deeper anatomy, removing superficial fat alone does not correct the entire problem.
What structures can a deep neck lift address?
That depends on the individual neck. I may be evaluating the platysma, subplatysmal fat, digastric muscles, submandibular glands and the hyoid relationship rather than treating only the skin. A review of surgically relevant deep-neck anatomy emphasizes how these structures and their anatomical variations influence central neck-lift planning.
Does everyone need submandibular gland reduction during a deep neck lift?
No. I only consider it when gland prominence is actually contributing to the neck contour. This is not a routine step that belongs in every neck lift. Published surgical guidance similarly describes hypertrophy or prominence of the submandibular glands as one of several possible causes of neck fullness and emphasizes careful examination to determine which deep-neck structures require treatment.
Can a facelift alone fix a full neck?
Sometimes improvement in the lower face and neck can be achieved as part of a facelift, but I do not assume that lifting the face automatically corrects every neck. If the problem includes significant deep-neck volume or unfavorable anatomy, I need access to address those structures directly. The surgical literature on the aging neck emphasizes that understanding the underlying anatomy is fundamental to choosing the appropriate neck-rejuvenation technique.
How do I know what is causing my full neck or weak jawline?
I have to examine you. I look at the hyoid, chin projection, jaw support, superficial and deep fat, platysma, digastric muscles, submandibular glands and skin. Several of these can create a similar appearance from the outside, which is why I do not want to diagnose a “fat neck” from a photograph alone. The literature on the difficult neck in facelifting similarly describes excess fat, skin quality, platysmal laxity, chin projection and hyoid position as separate factors that can influence the final contour.
