Submandibular Gland and Digastric Muscle Reduction The Deep Plane Steps Most Beverly Hills Surgeons Skip

Before we get into anatomy, let's start with the actual patient complaint that makes this topic worth an entire lecture rather than a footnote. Picture a patient six months out from a deep plane facelift. The jawline looks tighter. The cheeks sit higher. But there's still a soft fullness just beneath the jaw, on either side of the chin, that didn't go away. She's frustrated, because she was told a deep plane facelift would give her a clean, defined neck and jawline, and this particular fullness is still there.

This is one of the most common sources of disappointment after an otherwise well-executed facelift, and it happens because two specific structures, the submandibular glands and the digastric muscles, are frequently left untouched during standard facelift surgery, deep plane or otherwise. Today's lecture is about why that happens, what these two structures actually are, and why addressing them requires training and comfort level that a meaningful number of surgeons simply don't have.

Board One: What the Submandibular Gland Actually Is

Find the soft spot just beneath your jawbone, roughly where your jaw curves from your chin toward your ear. If you press gently there, in many people, especially as they age, you'll feel a soft, somewhat mobile fullness. That's very often your submandibular gland, one of your major salivary glands, sitting in a triangular space beneath your lower jaw.

This gland doesn't change size dramatically with a facelift because a facelift, in its standard form, repositions skin and the deeper SMAS layer above and around the gland, it doesn't touch the gland itself. As we age, the ligaments supporting the gland loosen, similar to how ligaments elsewhere in the face loosen, and the gland itself can descend and become more visible and more prominent, sometimes becoming genuinely enlarged relative to its earlier position. A facelift that lifts the surrounding tissue without addressing a prominent, descended gland can leave that specific fullness essentially unchanged, which is exactly the complaint we opened with.

Board Two: Why Surgeons Leave It Alone

Now, the honest question: if this is such a common source of patient disappointment, why isn't submandibular gland reduction just a standard part of every deep plane facelift? The answer is straightforward and worth saying plainly. This gland sits in close proximity to several structures that carry real consequences if injured, including branches of the facial nerve and significant blood vessels in the neck. Operating in this specific area requires more than general facelift competence, it requires comfort and specific experience working directly with the gland itself, partial removal or repositioning technique, and management of the surrounding structures.

This kind of experience is much more commonly built through head and neck surgical training, including training in cancer and trauma reconstruction, where surgeons routinely operate directly on and around the submandibular gland for reasons entirely unrelated to cosmetic surgery. A surgeon whose training path went directly into cosmetic-only practice, without that head and neck surgical foundation, is statistically less likely to have built deep, repeated comfort with this specific structure, and understandably may choose to leave it alone during a facelift rather than take on a technical step outside their core experience.

Board Three: The Digastric Muscle, the Second Overlooked Structure

Now let's add a second structure to the board, since it's frequently discussed alongside the submandibular gland for a related reason. The digastric muscle is a small muscle running beneath the jaw, playing a role in jaw movement and swallowing. In some patients, this muscle becomes more prominent with age or is simply more prominent by underlying anatomy, contributing to a fuller, less defined submental, or under-chin, contour, similar in visual effect to a prominent submandibular gland, though the two are anatomically distinct structures requiring separate identification and separate technical handling.

Digastric muscle reduction, when appropriate, involves conservatively reducing the muscle's bulk to improve the under-chin contour, again requiring specific comfort operating in this exact anatomical territory. Like submandibular gland work, this step is more often included in facelift technique by surgeons whose background includes substantial head and neck surgical experience, since the anatomical familiarity required overlaps directly with that training background.

Board Four: Why This Matters More for Some Patients Than Others

Not every patient needs either of these steps addressed, and it's worth being direct about that before this lecture starts to sound like a sales pitch for maximal surgery. Patients with minimal submandibular gland prominence and a naturally well-defined digastric contour may achieve an excellent result from a standard deep plane facelift without either of these additional steps. The patients who benefit most are specifically those whose pre-surgical exam reveals a genuinely prominent, descended gland or muscle contributing meaningfully to their submental fullness, identifiable through a careful physical exam that specifically checks for these structures rather than assuming a standard facelift plan will address whatever fullness is present.

This is precisely why a thorough consultation for facelift surgery, particularly for patients specifically concerned about neck and jawline definition, should include a direct exam and conversation about the submandibular glands and digastric muscles specifically, not just the skin and SMAS layer that most facelift consultations focus on by default. Dr. Harris specifically builds this assessment into his own facelift consultations, given how frequently it changes the actual surgical plan once identified.

Board Five: Two More Related Techniques Worth Knowing

Since we're already at the whiteboard, it's worth mentioning two related refinements that often accompany this level of deep plane facelift technique, since they're part of the same broader category of detail-oriented steps that separate a comprehensive deep plane approach from a more limited one. The mastoid crevasse, the area behind the ear near the mastoid bone, is sometimes used as an anchor point to achieve more depth and definition along the angle of the jaw, allowing for a more natural, three-dimensional lift rather than a flatter, more purely lateral pull. Netting sutures, a specific internal suturing technique, help manage bleeding risk during surgery while also helping hold repositioned skin in its new location as it heals, an added layer of technical support that isn't part of every surgeon's standard technique.

None of these steps are individually revolutionary. Together, they represent the accumulated technical detail that separates a facelift performed by a surgeon working from a template versus one built around a comprehensive understanding of exactly which structures in the neck and jaw contribute to an aging appearance and how each one specifically needs to be addressed.

Board Six: Why This Level of Technique Tends to Take Longer

It's worth connecting this lecture directly to a related, practical point: surgery that includes gland and muscle work, mastoid anchoring, and internal netting sutures simply takes longer than a facelift limited to skin and SMAS repositioning, which is exactly why some practices structure their entire surgical schedule around performing only one comprehensive facelift per day rather than several shorter cases. This is part of why some surgeons who perform multiple facelifts in a single day are, by simple mathematics, unlikely to be including this full range of technique in each case, since the additional time required for gland and muscle work doesn't fit within a schedule built around higher daily case volume.

This isn't a moral judgment about surgeons who take a faster, higher-volume approach, since that approach can still produce excellent results for patients whose anatomy doesn't require this additional level of detail. It is, however, a genuinely useful piece of information for a patient specifically bothered by submandibular or digastric fullness, since it means the pace and structure of a surgeon's typical operating day is a reasonable, practical signal of whether this level of technique is likely to be part of their standard approach.

Board Seven: What to Actually Ask in Your Consultation

Given everything on the board so far, here's the practical takeaway for your own consultation. Ask directly whether your exam included a specific assessment of your submandibular glands and digastric muscles, not just your skin and jawline generally. If gland or muscle prominence is identified as part of your presentation, ask specifically whether the surgeon's standard technique includes addressing it, and what their background and comfort level with this specific anatomy actually is, including whether their training included head and neck surgery experience beyond cosmetic-only practice. This is not an impolite question. It's a specific, technical question that a surgeon genuinely experienced in this area should be comfortable answering in detail.

Closing the Lecture: Why This Detail Actually Matters

We started with a specific, common patient complaint: a facelift that improved the jawline and cheeks but left submental fullness essentially unchanged. Everything covered on the board since then has been building toward the same conclusion. That fullness is very often not a failure of the facelift itself, it's a sign that a specific anatomical contributor, the submandibular gland, the digastric muscle, or both, was never part of the surgical plan to begin with, whether because the patient's exam didn't specifically screen for it or because the surgeon's training and standard technique didn't include addressing it. Understanding this distinction, and asking about it directly, is the single most useful thing a patient specifically concerned about neck and under-chin definition can do before choosing a surgeon and a surgical plan.

Board Eight: Why Beverly Hills Specifically Sees More of This Marketing Gap

It's worth addressing directly why this particular technical gap, surgeons advertising deep plane technique without necessarily performing its full, comprehensive version, seems to come up more often in discussions of Beverly Hills and greater Los Angeles specifically than in facial plastic surgery discussions generally. Beverly Hills has an unusually high concentration of facial plastic surgery practices competing for the same patient population, and deep plane technique has become one of the most searched, most desirable terms among prospective patients researching facelift options in this specific market. This combination, high competition and high patient search volume around one specific term, creates a genuine incentive for practices to adopt deep-plane-adjacent language in their marketing regardless of the specific extent of technique actually being performed, simply because patients are actively searching for that exact term and are more likely to book a consultation with a practice that uses it prominently.

This isn't a uniquely Beverly Hills phenomenon in principle, the same dynamic exists in any competitive market with high patient search interest around a specific technique, but the concentration of both factors, competitive density and search volume, happens to be particularly pronounced in this specific geographic market, which is part of why patients researching facelift options here specifically benefit from understanding this dynamic clearly before their consultations begin.

What Happens When These Structures Are Addressed Successfully

It's worth closing with a clear, concrete picture of what a successful outcome actually looks like when submandibular gland and digastric muscle work are appropriately included in a comprehensive facelift plan, since the entire lecture so far has focused on the problem being solved rather than the successful result itself. Patients whose exam reveals genuine gland or muscle prominence, and who undergo surgery specifically addressing these structures alongside standard deep plane technique, typically describe their post-recovery under-chin and neck contour as meaningfully more defined and consistent with the rest of their facial rejuvenation result, rather than having one specific area that continues to look unaddressed while the rest of the face shows clear improvement.

This consistency, a result that reads as complete and proportionate across the entire lower face and neck rather than excellent in some areas and unchanged in others, is ultimately the practical goal this entire technical discussion has been building toward, and it's worth keeping this end result in mind as the actual reason this level of technical detail matters, not simply as an abstract anatomical distinction for its own sake.

Every patient's neck and jawline anatomy is different, and the only way to know whether this level of technique applies to you is a hands-on exam.