The causes of obesity

Written by Luo Juan
Endocrinology
Updated on December 17, 2024
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Obesity can be classified into primary and secondary obesity according to its causes. Primary obesity, also known as simple obesity, is the most common type among various forms of obesity. It is mainly caused by poor dietary habits such as overeating, especially excessive intake of fatty foods, and a sedentary lifestyle, rather than being secondary to other diseases. Secondary obesity, on the other hand, is often due to diseases of the hypothalamic-pituitary axis, hypercortisolism, hypofunction of the thyroid or gonads, insulinomas, and other diseases. Secondary obesity is mainly due to diseases, and it can show some symptoms of the underlying disease.

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Harms of Obesity

In the case of obesity, it is first necessary to distinguish between physiological obesity and pathological obesity. For pathological obesity, further examination of the adrenal glands is required, such as respiratory syndrome, some problems with the pituitary gland, or conditions caused by Cushing's syndrome, all of which can lead to pathological obesity. The risks associated with obesity are quite significant. Firstly, it directly causes disturbances in the body's energy metabolism, hyperlipidemia, hypertension, or other issues. Obesity can also lead to fatty liver, lipid deposition in the heart, kidneys, and other organs, resulting in corresponding organ damage. Additionally, it can cause infertility due to the deposition of fat in the ovaries, and in terms of joints, it places excessive load on the human joints, leading to various joint diseases, and consequently increasing the risks of cardiovascular diseases and sudden death risks.

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What tests are needed for obesity?

Obesity is divided into simple obesity and secondary obesity. Simple obesity refers simply to being overweight without any other primary diseases. Secondary obesity requires examination of certain conditions, such as hypothyroidism, which can lead to obesity, thus necessitating thyroid function tests; or Cushing's syndrome, which involves increased body weight due to excessive corticosteroid hormones produced by various causes, necessitating an examination of the cortisol rhythm and sometimes a dexamethasone suppression test, magnetic resonance imaging (MRI) of the pituitary, and CT scan of the adrenal glands; also conditions such as depression or psychiatric illnesses that can lead to weight gain, requiring corresponding psychiatric scales, among others. In addition to these tests, it is also necessary to consider the patient's clinical symptoms and then conduct targeted examinations based on these symptoms.

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What department should I go to for obesity?

Obesity is a chronic metabolic disease that belongs to the field of endocrinology, so the first choice for early-stage obesity is to see an endocrinologist. Some hospitals also have specialized weight management departments, which are also an option for consultation. When obesity is accompanied by other serious comorbid conditions, such as coronary heart disease or heart failure, in addition to seeing an endocrinologist, it is also necessary to visit the cardiology department. If there is concomitant osteoarthritis, a visit to the orthopedics department is needed. Women suffering from menstrual irregularities or infertility should consult with a gynecologist. In summary, obesity is a disease that can cause multiple metabolic abnormalities and damage multiple systems, requiring early prevention and treatment.

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What department does obesity hang?

First, I recommend visiting the Department of Endocrinology and Metabolic Science, because obesity itself is a metabolic disease, and now obesity is divided into simple obesity and secondary obesity. Simple obesity refers to weight gain caused solely by factors such as irregular eating habits, unscientific diet, and lack of exercise, without other underlying causes. There is also a type called secondary obesity, which is attributable to identifiable causes. For example, a common disorder in endocrinology known as Cushing's syndrome is caused by problems in the pituitary or adrenal glands, leading to an excessive secretion of cortisol in the blood. This results in the redistribution of fat and subsequent weight gain. Another example is hypothyroidism, which also causes weight gain. Therefore, it is essential to see an endocrinologist, who can determine based on clinical manifestations and actual conditions whether the obesity is simple or secondary, and then provide appropriate treatment.

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Obesity can cause which diseases

Firstly, obesity, also known as adiposity, is a chronic metabolic disease caused by excessive accumulation or abnormal distribution of body fat. Diseases closely related to obesity include cardiovascular diseases, hypertension, diabetes, etc. Complications of obesity also include sleep apnea syndrome, venous thrombosis, and others. Moreover, the occurrence of malignant tumors increases with obesity, as prolonged obesity can lead to skin folds that are prone to abrasions and subsequent fungal or purulent infections.