Cold plastic freezing has obvious fat-reducing effect and quick effect. For severely obese patients, it is difficult to lose weight only by exercise. They can choose to go to the plastic surgery department of a regular hospital to receive cool plastic freezing and fat reduction treatment, which can directly act on the skin and deep fat layer, so that the fat sinks to the adipose tissue of the dermis, thus achieving the effect of slimming. In the course of treatment, it is best for patients to avoid eating high-oil and high-fat foods, so as not to affect the therapeutic effect.