Anorexia nervosa (patient information)

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Anorexia nervosa

Overview

What are the symptoms?

What are the causes?

Who is at highest risk?

When to seek urgent medical care?

Diagnosis

Treatment options

Where to find medical care for Anorexia nervosa?

What to expect (Outlook/Prognosis)?

Possible complications

Prevention

Anorexia nervosa On the Web

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Directions to Hospitals Treating Anorexia nervosa

Risk calculators and risk factors for Anorexia nervosa

Editor-in-Chief: C. Michael Gibson, M.S.,M.D. [1] Phone:617-632-7753; Associate Editor-In-Chief: Lakshmi Gopalakrishnan, M.B.B.S.

Overview

Anorexia nervosa is an eating disorder that makes people lose more weight than is considered healthy for their age and height.

Persons with this disorder may have an intense fear of weight gain, even when they are underweight. They may diet or exercise too much, or use other methods to lose weight.

What are the symptoms of Anorexia nervosa?

  • To be diagnosed with anorexia, a person must:
  • Have an intense fear of gaining weight or becoming fat, even when she is underweight
  • Refuse to keep weight at what is considered normal for her age and height(15% or more below the normal weight)
  • Have a body image that is very distorted, be very focused on body weight or shape, and refuse to admit the seriousness of weight loss
  • Have not had a period for three or more cycles (in women)
  • People with anorexia may severely limit the amount of food they eat, or eat and then make themselves throw up.
  • Other behaviors include:
  • Cutting food into small pieces or moving them around the plate instead of eating
  • Exercising all the time, even when the weather is bad, they are hurt, or their schedule is busy
  • Going to the bathroom right after meals
  • Refusing to eat around other people
  • Using pills to make themselves urinate (water pills or diuretics), have a bowel movement (enemas and laxatives), or to decrease their appetite (diet pills)
  • Other symptoms of anorexia may include:
  • Blotchy or yellow skin that is dry and covered with fine hair
  • Confused or slow thinking, along with poor memory or judgment
  • Depression
  • Dry mouth
  • Extreme sensitivity to cold (wearing several layers of clothing to stay warm)
  • Loss of bone strength
  • Wasting away of muscle and loss of body fat

What causes Anorexia nervosa?

  • The exact causes of anorexia nervosa are unknown.
  • Many factors probably are involved. Genes and hormones may play a role. Social attitudes promoting very thin body types may also be involved.
  • Family conflicts are no longer thought to contribute to this or other eating disorders.
  • Anorexia usually begins during the teen years or young adulthood. It is more common in females, but may also be seen in males. The disorder is seen mainly in white women who are high academic achievers and who have a goal-oriented family or personality.

Who is at highest risk?

Risk factors for anorexia include:

  • Trying to be perfect or overly focused on rules
  • Being more worried about, or paying more attention to, weight and shape
  • Having eating problems during infancy or early childhood
  • Certain social or cultural ideas about health and beauty
  • Having a negative self-image
  • Having an anxiety disorder as a child

When to seek urgent medical care?

  • Talk to your doctor if a loved one is:
  • Too focused on weight
  • Over-exercising
  • Limiting his or her food intake
  • Very underweight
  • Getting medical help right away can make an eating disorder less severe.

Diagnosis

  • Other causes of weight loss or muscle wasting must be ruled out with medical testing. Examples of other conditions that can cause these symptoms include:
  • Tests should be done to help find the cause of weight loss, or see what damage the weight loss has caused. Many of these tests will be repeated over time to monitor the patient.
  • These tests may include:

Treatment options

  • The biggest challenge in treating anorexia nervosa is making the person recognize that they have an illness. Most persons with anorexia nervosa deny that they have an eating disorder. People often enter treatment only once their condition is serious.
  • The goals of treatment are to restore normal body weight and eating habits.A weight gain of 1 - 3 pounds per week is considered a safe goal.
  • A number of different programs have been designed to treat anorexia. Sometimes the person can gain weight by:
  • Increasing social activity
  • Reducing physical activity
  • Using schedules for eating
  • Many patients start with a short hospital stay and continue to follow-up with a day treatment program.
  • A longer hospital stay may be needed if:
  • The person has lost a lot of weight (being below 70% of their ideal body weight for their age and height). For severe and life-threatening malnutrition, the person may need to be fed through a vein or stomach tube.
  • Weight loss continues even with treatment
  • Medical complications, such as heart problems, confusion, or low potassium levels develop
  • The person has severe depression or thinks about committing suicide
  • Care providers who are usually involved in these programs include:
  • Nurse practitioners
  • Physicians
  • Nutritionists or dietitians
  • Mental health care providers
  • Treatment is often very difficult, and patients and their families must work hard. Many therapies may be tried until the patient overcomes this disorder.
  • Patients may drop out of programs if they have unrealistic hopes of being "cured" with therapy alone.
  • Different kinds of talk therapy are used to treat people with anorexia:
  • Individual cognitive behavioral therapy, group therapy, and family therapy have all been successful.
  • The goal of therapy is to change a patient's thoughts or behavior to encourage them to eat in a healthier way. This kind of therapy is more useful for treating younger patients who have not had anorexia for a long time.
  • If the patient is young, therapy may involve the whole family. The family is seen as a part of the solution, instead of the cause of the eating disorder.
  • Support groups may also be a part of treatment. In support groups, patients and families meet and share what they've been through.
  • Although these drugs may help, no medication has been proven to decrease the desire to lose weight.

Where to find medical care for Anorexia nervosa?

Directions to Hospitals Treating Anorexia nervosa

What to expect (Outlook/Prognosis)?

  • Anorexia nervosa is a serious condition that can be deadly. By some estimates, it leads to death in 10% of cases. Experienced treatment programs can help people with the condition return to a normal weight, but it is common for the disease to return.
  • Women who develop this eating disorder at an early age have a better chance of recovering completely. However, most people with anorexia will continue to prefer a lower body weight and be very focused on food and calories.
  • Weight management may be hard. Long-term treatment may be needed to stay at a healthy weight.

Possible complications

  • Complications can be severe. A hospital stay may be needed.
  • Complications may include:

Prevention

In some cases, prevention may not be possible. Encouraging healthy, realistic attitudes toward weight and diet may be helpful. Sometimes, talk therapy can help.

Source

http://www.nlm.nih.gov/medlineplus/ency/article/000362.htm


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