Understanding Jowls: Why They Form and Why They Are Difficult to Treat

By Dr. Willem J. Gouws, MBChB, CCFP, FPA

Physician | Facial Aging & Structural Rejuvenation

Few facial aging concerns frustrate patients more than jowls.

Many people first notice them while looking at photographs or seeing their reflection from an angle. A jawline that once appeared crisp and defined begins to soften. The lower face appears heavier. Shadows develop along the jawline, and the transition between the face and neck becomes less distinct.

For many patients, jowls represent the moment when they feel their face has begun to look older.

Unfortunately, jowls are also one of the most misunderstood features of facial aging.

Many treatments claim to eliminate jowls, but the reality is that jowls are rarely caused by a single problem. They develop through a combination of structural and soft tissue changes that occur over decades.

Understanding why jowls form is the first step toward understanding how they can be treated.

What Are Jowls?

Jowls are areas of fullness that develop along the jawline as facial tissues change position with age.

Rather than maintaining a smooth contour from the chin to the angle of the jaw, tissue begins to accumulate along the mandibular border.

This creates:

• Loss of jawline definition

• Facial heaviness

• Shadows along the jawline

• A less youthful facial contour

  
  

Although patients often describe jowls as “sagging skin,” the reality is more complex.

Jowls involve multiple facial layers, including:

• Bone

• Fat

• Ligaments

• Skin

• Muscles

  
  

Each layer contributes differently to their formation.

The Jawline of Youth

To understand jowls, it helps to understand what creates a youthful jawline.

A youthful lower face is typically characterized by:

• Strong mandibular support

• Smooth contours

• Tight tissue relationships

• Minimal heaviness

• Clear separation between face and neck

  
  

The jawline acts as one of the most important visual indicators of youth.

As structural support changes and tissues shift, this contour gradually becomes less defined.

The result is what we recognize as jowling.

Cause #1: Structural Support Changes

The facial skeleton changes throughout life.

Although these changes occur slowly, they significantly influence facial appearance.

Aging-related remodeling can affect:

• Mandibular height

• Chin projection

• Jawline support

• Facial proportions

  
  

As support diminishes, tissues resting above these structures lose some of the framework that once maintained their position.

This is one reason why simply tightening the skin often fails to fully correct jowls.

The foundation itself may have changed.

Cause #2: Tissue Descent

One of the most important contributors to jowl formation is tissue descent.

The face contains multiple soft tissue layers that are stabilized by retaining ligaments.

Over time, these tissues gradually shift downward.

As tissue accumulates near the mandibular border, fullness develops along the jawline.

This process contributes to:

• Early jowls

• Deepening folds

• Lower-face heaviness

  
  

Tissue descent is often what people mean when they refer to “sagging.”

However, it is rarely the only mechanism involved.

Cause #3: Changes in Facial Fat

Facial fat changes significantly with age.

Interestingly, both fat loss and fat retention can contribute to jowls.

Volume Loss

Loss of volume in the cheeks may reduce support for lower facial tissues.

As support diminishes, tissues may descend more easily.

Fat Retention

Some individuals maintain or accumulate fullness in lower facial compartments.

These patients often develop:

• Heavier jowls

• Blunted jawlines

• Increased lower-face volume

  
  

This is particularly common in what we refer to as the “heavy-face” aging pattern.

Understanding whether volume loss or tissue heaviness dominates is critical when designing a treatment strategy.

Cause #4: Skin Laxity

The skin itself changes with age.

Collagen and elastin gradually decline, reducing the skin’s ability to resist gravitational forces.

Signs of skin laxity include:

• Loose skin

• Reduced elasticity

• Crepey texture

• Loss of contour

  
  

Skin laxity contributes to jowls but is rarely the sole cause.

This explains why skin-tightening treatments sometimes produce meaningful improvement and sometimes produce only modest results.

The outcome depends on how much skin laxity contributes relative to other mechanisms.

Why Some Patients Develop Severe Jowls

Not everyone develops jowls at the same rate.

Several factors influence severity:

Genetics

Inherited facial structure plays a major role.

Facial Shape

Certain facial types are more prone to lower-face heaviness.

Weight Changes

Repeated weight fluctuations can accelerate contour changes.

Skin Quality

Reduced elasticity may allow tissues to descend more easily.

Tissue Characteristics

Some individuals naturally possess heavier facial tissues.

The combination of these factors creates highly individualized aging patterns.

Why Jowls Are Difficult to Treat

One of the biggest challenges in aesthetic medicine is that many treatments target only one component of jowl formation.

For example:

A skin-tightening treatment addresses skin laxity.

A filler addresses volume loss.

A lifting procedure addresses tissue position.

But jowls often result from multiple mechanisms occurring simultaneously.

This explains why some patients experience dramatic improvement while others experience only modest change.

The success of treatment depends largely on whether the dominant cause has been correctly identified.

Non-Surgical Treatment Options

The ideal treatment depends on the underlying cause.

Potential approaches may include:

Skin Tightening

Appropriate when skin laxity is a significant contributor.

Structural Rejuvenation

Appropriate when support loss contributes to lower-face aging.

Volume Restoration

Appropriate in patients with significant volume depletion.

Fat Reduction

Appropriate in selected patients with lower-face heaviness.

Combination Approaches

Often provide the most comprehensive improvement.

The goal should not be to treat the jowl itself.

The goal should be to treat the mechanism responsible for creating the jowl.

When Surgery May Be the Best Option

There are limits to what non-surgical treatments can achieve.

Patients with:

• Significant tissue descent

• Advanced skin laxity

• Marked lower-face heaviness

  
  

may achieve the most dramatic improvement with surgery.

A facelift remains the most effective treatment for advanced jowling because it directly repositions tissues.

This does not mean non-surgical options lack value.

Many patients can achieve meaningful improvement without surgery.

The key is establishing realistic expectations and selecting the appropriate treatment strategy.

A Better Way to Evaluate Jowls

Rather than asking:

“How do we treat this jowl?”

A more useful question is:

“Why did this jowl form?”

The answer may involve:

• Structural support loss

• Volume changes

• Tissue descent

• Skin laxity

• Facial heaviness

• A combination of all of the above

  
  

Understanding these factors allows treatment to become more precise and individualized.

Final Thoughts

Jowls are one of the most common signs of facial aging, but they are also one of the most complex.

They do not develop because of a single problem.

They result from multiple structural and soft tissue changes that occur gradually over time.

Understanding the underlying causes is essential for creating effective treatment plans and realistic expectations.

Because successful facial rejuvenation is not about chasing symptoms.

It is about understanding the mechanisms that created them in the first place.

About the Author

Dr. Willem J. Gouws, MBChB, CCFP

Dr. Willem Gouws is a physician practicing aesthetic medicine in Vancouver and Squamish, British Columbia. His clinical focus includes facial aging assessment, lower-face rejuvenation, structural facial rejuvenation, ultrasound-guided treatments, and skin-tightening technologies. He is a QuantumRF trainer in Canada and is actively involved in developing frameworks for facial aging analysis and treatment planning.