There may be a lot of fat accumulation around the chest, lungs and abdominal cavity of obese patients, and the patient's pharynx is relatively narrow, which will lead to the failure to open the alveoli when inhaling, affecting the ventilation function of the lungs, that is, affecting the patient's breathing problems. Moreover, obese patients will also have fat accumulation in the interstitial lung, which will reduce the overall lung function, and even lead to obstructive sleep apnea hypopnea syndrome in severe cases, posing a threat to patients' lives.

Second, it affects mental health.

Many obese patients have bipolar disorder, which mainly refers to a disease with manic episodes and depressive episodes. On the contrary, patients with mental illness are also more likely to lead to obesity. Therefore, after losing weight, many obese patients can also relieve mental illness and reintegrate into society.

Third, damage internal organs.

Obesity can harm any organ of the body, among which the organs directly injured are mainly the lungs and the heart, as well as liver function, kidney function and gonad organs, which increases the risk of obesity.

If obese people want to lose weight, it is very effective to control diet and insist on exercise, that is, to lose weight by reducing calorie intake and accelerating calorie consumption, but these two methods are not suitable for obese patients. When the body mass index of obese patients is greater than 27.5, weight-loss surgery can be considered to achieve the purpose of weight loss. Before operation, two measures should be prepared: one is to limit the patient's calorie intake to lose weight, and the other is to take medication to restore the patient's heart function, lung function, liver function and kidney function. So that all organs in his body can tolerate anesthesia and surgery.