There is a bottom line for plastic surgery. Don't be too willful.

As you know, reports of harm caused by plastic surgery are often seen in the newspapers. Some of them are caused by not understanding the bottom line and blindly pursuing results. Due to the lack of medical cosmetic knowledge, disputes often occur between patients and doctors. In fact, there is an insurmountable bottom line for plastic surgery based on each individual's own conditions.

The maximum width of double eyelid surgery is 10mm.

Double eyelids may seem simple, but it is not easy to achieve perfection. Since the design of double eyelid surgery is very delicate, it is calculated in millimeters. The width is mostly within 10 mm, generally between 5 and 8 mm.

If you are tall and have an oval face, or if you need to for some reason, such as an actor or artist, the double eyelids can be slightly wider, but it is best not to exceed the width of 10 mm.

Surgery that exceeds the limit usually leads to two consequences. One is drooping eyelids, which causes incomplete or inability to open the eyes; the other is panic eyes, because the double eyelids are too large, the eyes always look like they are "staring".

Rhinoplasty: Asians should not raise their nose more than 4mm

The height, length, width, etc. of the nose should be in harmony with the entire face. Therefore, preoperative planning for rhinoplasty is very important, and it should pay attention to the principles of symmetry, balance, proportion, golden triangle and golden ratio, lines or curves, harmony and natural beauty.

These underlying factors determine the aesthetic proportions of the nose and face, so generally speaking, it is best for Asians not to raise their noses more than 4 mm. The higher the height, the better. In addition, attention should be paid to surgical principles such as concealed incision, aseptic operation, gentle operation, and reducing trauma.

If the rhinoplasty exceeds the limit, it will appear as an "elephant" nose, and the raised nose will sway from side to side. In addition, too many prosthetic implants can cause the nose skin to become tight and thin.

Botulinum toxin injection: no more than 100 units at a time

It is understood that Botox toxin has the property of temporarily paralyzing muscles. It was first used by medical scientists to treat facial spasms and other muscle movement disorders to paralyze muscle nerves in order to stop muscle spasms.

But during the treatment, doctors discovered that it has an extraordinary function in eliminating wrinkles, and wrinkles can be made to "disappear" within 15 minutes after injection. Therefore, Botox toxin has rapidly become popular in recent years and has become a "blessing" for female celebrities in the entertainment industry.

Liposuction: More than 4000 ml at a time can cause shock

The total amount of fat sucked should be kept within the normal and safe range as much as possible. Plastic surgery textbooks recommend that the maximum amount of fat sucked at one time should not exceed 3000 ml.

However, during the actual operation, the total amount of fat sucked should generally be controlled within 4000 ml. Even for young patients with good physical fitness, the total amount of fat sucked at one time should not exceed 5000 ml. It is unscientific and unsafe to extract tens of thousands of milliliters of fat at one time.

Breast augmentation: Up to 400 ml of filler per side

Many women believe that the bigger the breasts, the better, so many women ask plastic surgeons to give them super-large breasts. In fact, this idea is unscientific. Too much or too large fillers are forcibly implanted into the breasts, which not only lacks aesthetic appeal, but also squeezes the physiological structure inside the breasts and affects physical health.

Therefore, the amount of filler implanted in the breast should not exceed 400 ml on each side. If the implant is too large for the volume of the skin and corresponding tissue, not only will it fail to achieve the effect you want, but it may also leave adverse consequences that are visible to the naked eye or palpable under the skin, endangering your health.

Expert: What suits you is beautiful

Cosmetic surgery is highly individual. Cosmetic surgery is just a process to enhance one's appearance. The best one is the one that suits you.

For example, although the noses of Oriental women are not as straight as those of Westerners, their slender and beautiful noses are very suitable for their face shape, so there is no need to pursue a high and straight nose; single eyes bring out the unique classical beauty of Oriental people. If you forcibly open the single eyes into double eyelids, the artistic conception will be lost.

"Plastic surgery cannot completely change your face. Even if you take a photo of Cecilia Cheung and change your face shape, get double eyelids, or have a nose job, your face will look fake after the surgery. This kind of 'beauty' is completely different from Cecilia Cheung's beauty."