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Alimentary Behavior Disorders:

Bulimia nerviosa

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It is a disorder specific to alimentary behavior; it affects women more and it is more frequent in the stages of adolescence and young adulthood. It is characterized by recurrent binge eating and subsequent compensatory mechanisms, with feelings of guilt and inferiority.

Binge eating is…

It is the ingestion of large amounts of food in a short time, much bigger than most people would eat in a similar amount of time and under the same circumstances, but with the feeling of control loss when eating.


This disease is accompanied by inappropriate compensatory behaviors as induced vomiting, misuse of laxatives, diuretics or other drugs, there may be fasting and excessive exercise, to prevent weight gain.

On average, binge eating and inappropriate compensatory behaviors occur, at least 2 times a week for a period of three months.

Self-evaluation is overly influenced by body shape and weight, with deterioration in the self perception of weight and shape.


a) Purgative. Regularly induced vomiting or use of laxatives, diuretics or enemas.
b) No purging. Use of fasting or intense exercise, there is no self-induced vomiting nor laxatives, diuretics or enemas.


It is difficult to detect the disease just by seeing the person, since health problems are not as obvious as in anorexia nervosa. For example, the ill person can have normal weight and still suffer the disease, he/she also keeps his/her eating habits in secret to an extent that even his/her family and friends are not aware of the problem.

The ill person has feelings of guilt, his/her self-acceptance depends on his/her weight, he/she has constant mood swings, isolation, depression, impulsivity, lack of control and at times, has alcohol and / or drug abuse, and hypersexuality.

They avoid eating with family and / or in public, they look for restrooms upon arrival to a place, they go to the bathroom immediately after eating food, they disappear food at home and they buy food compulsively.


Physical consequences can be severe as the Electrolyte imbalance, low levels of potassium, resulting from the loss of large amounts of it through vomiting, irregular heartbeat, and even death.

In addition to dehydration, esophagitis, gastritis, gastric ulcer, even rupture of the esophagus and other less severe as: irregular menstrual periods, swollen face caused by swollen parotid glands, sore throat, low pitch voice, cavities with loss of tooth enamel, dry skin and weight fluctuations.

Diagnosis and treatment

The Alimentary Behavior Disorders are complex diseases that trap the patient little by little and the individual gradually becomes lost with great difficulty to recognize what he/she suffers, so treatment must be multi-and interdisciplinary with different specialists to address all impact areas, always supported by the family, which is essential for recovery.

Médica Sur has one of the clinical service for such treatment in Mexico, the patient will benefit the individual comprehensive diagnostic evaluations, provide an orientation and complete information to him and his family about treatment options, provide the proper monitoring and make it part of major campaigns, lectures and workshops.

This service can be found at the Integrated Diagnosis and Treatment Center (CIDyT) through the clinical service eating disorders in our medical facilities at Médica Sur Tlalpan.