Rich buns are hemispherical bumps that appear on the back of the neck. If they are only caused by fat accumulation and are mild, they can usually be eliminated by liposuction; if they are caused by lipomas, or upper cross syndrome caused by cervical vertebrae protrusion, they cannot be eliminated by liposuction. First, liposuction is possible: this kind of rich bag is mostly caused by unhealthy diet and excess nutrition, while exercising too little. It is a benign lesion, commonly found in people with unhealthy diet, long-term alcohol consumption and insufficient exercise. Because only fat, does not contain other tissues, so the texture of this rich package is usually soft, pressed without obvious pain, can be eliminated by liposuction surgery, the fat will be extracted and supplemented with pressure, thus becoming flat. Second, liposuction is not possible: 1. Lipoma: the essence is a benign tumor composed of mature fat cells and mesenchymal cells, not simply fat. The local texture may be soft and pushable, usually painless, but may cause transient pain when the tumor is large and compressing nerves. Lipoma usually cannot be completely removed with the help of liposuction surgery and is prone to recurrence, so it needs to be diagnosed by a doctor and then choose a surgical method to completely peel off the tumor along with the envelope to prevent recurrence. 2. Upper cross syndrome: Long-term improper posture of work and study may lead to abnormal projection of the cervical and thoracic vertebrae, which protrude and form a cross angle bulging outward toward the skin, and the typical symptoms of patients are significant pain. If early treatment is not timely, the pain will gradually spread to the back of the shoulder and waist, and the patient may also show signs such as chest and hunchback. Since it may include bony protrusion in addition to fat inside, the rich pouch in this case cannot be eliminated by liposuction, and generally requires massage, massage, exercise, correction and other rehabilitation training to relieve or eliminate it.