In short. Three words for three different problems. How to tell which one you have, and why each points towards a different kind of treatment.
Key points
- An assessor does not need to hear which treatment you have read about.
- They need to hear whether the cheek is empty, whether it has moved, or whether it never projected.
- The direction is the finding, and the finding decides the option list before any product or operation is named.
Three people look in the same mirror and describe three different faces. One says the cheek has gone flat. One says it has gone hollow. One says it has dropped. Those three sentences describe three different problems, they are treated in three different directions, and the words are not interchangeable.
Flat: the cheek does not come forward
Flatness is a statement about projection. The cheek sits level with the plane of the face rather than forward of it, the area under the eye meets the cheek without a step, and the face reads as two dimensional in certain light. Two layers can be responsible and they are told apart by examination. If the cheekbone projects normally and the fat over it is thin, the answer is volume. If the bone itself is set back, then no amount of material placed on top of it reproduces the projection of a skeleton that was never there, and the honest conversation is about what can be approximated instead.
Hollow: something is missing in a specific place
Hollowing is a shadow rather than a plane. It sits below the cheekbone, sometimes with the eye socket looking deeper, and it reads as tiredness to other people even when the person is not tired. It has two causes and they point in opposite directions. A true loss of the deep fat against the bone is refilled. Descent of the compartment that used to occupy that space leaves a gap behind it, and filling that gap heavily produces a flat, heavy cheek rather than a lifted one, because the volume has been added in front of tissue that is still in the wrong place.
Heavy: the tissue is present and in the wrong place
Heaviness is about position. The fullness has moved down over the jaw, the line from the outer eye to the jaw has broken, and the lower cheek sits closer to the mouth than it used to. This is the complaint that volume cannot answer, and adding to it makes the lower face heavier. What changes it is an operation that repositions the soft tissue as a layer, which is a different proposition in recovery, in time and in risk. It is also the finding that asks for the longest recovery of the three, which is worth knowing at the start of a conversation rather than at the end.
Describe the direction, not the treatment
An assessor does not need to hear which treatment you have read about. They need to hear whether the cheek is empty, whether it has moved, or whether it never projected. The direction is the finding, and the finding decides the option list before any product or operation is named.
When the change is not the ordinary kind
- A change in the shape of one cheek over weeks, rather than over years.
- A lump that is firm, fixed, or enlarging, with or without pain.
- Weakness of one side of the face, or a mouth that moves unevenly.
Frequently asked questions
Can two of these be present at the same time?
Often, and that is the usual situation rather than the exception. A face that has descended is frequently hollow above the descent, because the tissue that left is the tissue that moved. A flat midface can also be flat for two reasons at once: little projection from the bone and little fat over it. Where more than one is present, the plan states which is being treated and which is being accepted, because a plan that quietly ignores one of them leaves the person with a change they did not ask for.
Which of the three is easiest to treat?
Hollowing, in the sense that it is the most predictable to replace, and it is the one where a trial with a dissolvable material is genuinely informative. Flatness is next, and it depends on whether the limit is fat or bone. Heaviness is the one that volume cannot answer at all, and it is the reason a careful assessment insists on establishing direction before anything else is discussed.
Does losing weight change which one I have?
It can, and it is worth mentioning at an assessment. Weight loss removes fat from the compartments that still have it, which makes a hollow deeper and can reveal a descent that was previously padded over. A face assessed before a planned weight change and again afterwards can read differently, and the sequence of the two matters when a plan is being made.
Risks & Limitations
- Volume does not correct descent, and no result can be guaranteed.
- Swelling and bruising are usual after cheek treatment and settle over one to two weeks, often unevenly.
- Materials that are not hyaluronic acid cannot be dissolved, and an operation on the cheekbone cannot be reversed.
- A result is judged at months rather than weeks, and a second session is common after fat grafting.
When to Seek Care
- Severe pain during or shortly after an injection, blanching, or a dusky patch of skin.
- Any change in vision, or pain behind the eye.
- New weakness on one side of the face, or difficulty closing one eye.
- Fever with spreading redness, warmth or discharge around a treated area.
References & Further Reading
- American Society of Plastic Surgeons (ASPS) — procedure and safety guidance
- National Institute for Health and Care Excellence (NICE, UK) — relevant guidance
- Cochrane Library — systematic reviews
- Chinese Medical Association Plastic Surgery Branch — clinical guidance
This page is patient education, not medical advice, and it does not cite individual studies. Discuss your own case with a qualified clinician. To arrange an assessment at Chongqing West District Hospital, see Contact & Consultation.