Shin Bong-sun denies facial contouring surgery after shedding 11 kg

Comedian Shin Bong-sun, 45, has shown off a noticeably sharper jawline after losing 11 kilograms — prompting speculation that she had undergone facial contouring surgery, which she denied.

Shin recently posted a photo on SNS with the single caption "powdering up," showing her freshly made-up face inside a moving vehicle. Followers quickly noticed her slimmer jaw and more defined features.

Shin had previously said she lost about 11 kg through a combination of diet and exercise, and she has consistently drawn attention for her changed appearance since then, with no significant rebound in weight.

The surgery allegations came up directly during an appearance on comedian Lee Hong-ryeol's YouTube channel. When told she had become prettier, Shin addressed the rumors head-on. "There's a rumor going around that I had facial contouring surgery — I didn't. I've only had my nose done twice," she said. She then mentioned Botox, Thermage and Ultherapy, adding with a laugh, "Procedures don't count as surgery."

Weight loss reduces fat stored not only in the abdomen and thighs but also in the face. Subcutaneous fat around the cheeks, under the chin and along the neck is particularly susceptible — as it diminishes, the face appears narrower and the boundary between the jaw and neck becomes more defined.

When fat that once obscured the cheekbones and lower jaw recedes, the underlying bone structure becomes visible, making the facial contour look different even though the bones themselves have not changed. A reduction in facial volume can also make features such as the nose and eyes appear more prominent by comparison.

However, how much facial fat a person loses — and where — varies considerably. Some people accumulate fat mainly in the cheeks and under the chin, while others see little change in the face even after significant weight loss. Genetics, age, sex, skin elasticity and baseline body-fat distribution all play a role.

For someone like Shin, who shed close to double digits in total body weight, a noticeably different facial contour is a plausible outcome.

Losing a large amount of weight does not automatically make the face look younger or slimmer.

Facial fat does more than add bulk — it supports the volume of the skin and soft tissue. When body weight drops sharply in a short period, facial fat can disappear just as quickly, leaving the cheeks hollow, accentuating the area under the eyes and deepening nasolabial folds.

The problem is compounded with age. As skin loses elasticity and collagen over time, a sudden reduction in facial volume can outpace the skin's ability to adapt, making sagging more noticeable.

Extreme weight loss purely for cosmetic reasons is therefore inadvisable. A better approach is to maintain adequate intake of protein, vegetables and other essential nutrients rather than drastically cutting calories, while incorporating strength training to minimize muscle loss.

If the face looks gaunt or skin sagging becomes pronounced after weight loss, it is generally better to stabilize the current weight and allow the body time to recover rather than losing more.

The facial contouring surgery that Shin said she did not have works differently from weight loss: rather than reducing the amount of fat, it alters the size or position of the facial bones themselves.

Common procedures include zygoma reduction to pare down prominent cheekbones, square-jaw surgery to smooth the angled portion of the lower jaw, and chin surgery to adjust the length or position of the chin tip.

Chin surgery involves cutting the chin bone and repositioning it forward, backward or sideways before securing it with metal plates or screws. In short, weight loss reduces the volume of fat covering the face, while facial contouring surgery reshapes the skeletal structure itself.

Facial contouring surgery also differs from orthognathic surgery, which corrects the alignment of the upper and lower jaws and the bite. Where facial contouring focuses primarily on refining the outer appearance of the face, orthognathic surgery repositions both jaws to address malocclusion and functional problems with jaw movement.

A wide or angular-looking face is not always caused by bone structure. Excess subcutaneous fat around the jaw, a well-developed masseter muscle or significant skin sagging can all make the face appear broader. A thorough assessment of the bones, fat, muscles and skin condition is therefore essential before deciding on surgery.

Facial contouring surgery directly involves bone and the surrounding nerves and blood vessels, often requires general anesthesia, and carries a greater recovery burden and higher risk of complications than routine cosmetic procedures.

Postoperative swelling, bruising and pain are common, and complications such as bleeding, hematoma, infection and delayed wound healing can occur. Asymmetry in the facial contour or a result that differs from expectations is also possible.

Because nerves responsible for facial sensation run near the lower jaw and chin, patients may experience numbness or tingling in the lower lip or chin tip after surgery. Most cases improve over time, but in rare instances the sensory changes can persist.

Removing too much bone can alter the structural support for the overlying skin and soft tissue, paradoxically causing the cheeks or jaw area to sag. This is why identifying a range of change appropriate for one's own bone structure and soft tissue matters more than simply aiming to make the face as small as possible.

Anyone considering the procedure should verify not only the surgeon's specialty and experience but also the anesthesia and emergency-response protocols and the postoperative care plan. Smoking can impair wound healing, so patients should stop before and after surgery. Aspirin, anticoagulants, certain anti-inflammatory drugs and some health supplements can affect bleeding risk, and any products being taken should be disclosed to the medical team in advance.