What is the definition or description of: bariatrics?

It is Greek : "bari" means "weight" in greek. The suffix "atri" means treatment. So, bariatrics means "weight treatment". The dictionary defines bariatrics as the study and treatment of obesity. Hope this helps.

Obesity treatment : Bariatrics is the field of medicine dedicated to the study and management of obesity. Medical and surgical weight loss, treatment options, clinical research in obesity, and the general medical care of hospital patients who are severely overweight are all covered in this field. Almost a third of american patients suffer from obesity defined as a body mass index of greater than 30kg/m2.

Depends on doctor: There are bariatricians and these are medical doctors who help to take care of people with use of medications. This is usually useful for people with a body mass index below 35. Sometimes people after weight loss surgery require similar help. A bariatric surgeon performs surgery like gastric bypass or sleeve to help morbidly obese people to become healthier again. It depends on how heavy one i.

Bariatrics: in the context of surgery/medicine refers to the field of weight loss. Usually people are referring to bariatric surgery, which is the field of achieving weight loss via a variety of different surgeries.