Signs of Anorexia to Watch for in Teens

Anorexia signs

Verywell / Chelsea Damraksa 

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Anorexia nervosa is a serious, and sometimes deadly, eating disorder that impacts 0.3% to 0.4% of young women in the United States. Adolescents between ages of 15 and 24 with anorexia have 12 times the risk of dying compared to their same-aged peers. Because the disease often starts in the teen years and can be fatal if not treated, it's important for parents to know the signs of anorexia in teens.

Signs of Anorexia in Teens

Anorexia nervosa is an eating disorder that causes the person to severely restrict what they eat or drink. A person with anorexia is often underweight, but continues to feel overweight or “fat.” There is often a great fear of gaining any weight, despite the fact that the person is underweight.

There are many and varied signs of anorexia in teens, including physical as well as emotional/behavioral symptoms. Not all teens with anorexia nervosa are emaciated. Anorexia nervosa can also be diagnosed in individuals who have recently lost a lot of weight and are what many would consider "normal weight."

Physical Signs:

  • Dry skin or skin rash
  • Erosion of tooth enamel
  • Feeling cold
  • Poor nail quality
  • Thinning hair

Emotional or Behavioral Signs:

  • Frequently skipping meals with family and/or denying hunger
  • Anxiety at mealtimes, claiming they have already eaten, and/or making excuses to avoid meals
  • Prepping elaborate meals for friends or family but rarely eating them
  • Cutting food into tiny pieces or moving it around to look like they're eating
  • Wearing big, baggy clothing to cover up their body
  • Withdrawing from friends and skipping social functions
  • Spending an excessive amount of time at the gym or training for sports
  • Complaining about being "fat" or obsessing over "flawed" parts of their body
  • Focusing on nutritional labels in an excessive way or constantly trying restrictive diets (like eating no carbs or no fat)
  • Being moody, anxious, or depressed
  • Developing rituals regarding food (eating food in a certain order, excessive chewing, etc.)


Teens with anorexia nervosa deprive their bodies of sufficient calories and nutrients, which can lead to a variety of physical health consequences, including:

  • Anemia (iron deficiency)
  • Amenorrhea—if the anorexic is female, she may never get her first period, or her periods may stop or become less frequent
  • Brittle bones (osteoporosis)
  • Decreased testosterone (in boys with eating disorders)
  • Decreased thyroid hormone
  • Dehydration/kidney failure
  • Delayed physical maturation (due to decreased growth hormone)
  • Dry skin
  • Edema (swelling)
  • Electrolyte imbalance (which can lead to seizures)
  • Gastrointestinal problems (bloating, constipation)
  • Growth of fine, downy hair over the body (lanugo)
  • Hair loss
  • Heart disease
  • Infertility
  • Irregular or abnormally slow heart rate
  • Fainting
  • Low blood pressure
  • Memory loss/disorientation
  • Muscle weakness and loss of muscle
  • Poor circulation
  • Weakness and tiredness

In addition to physical complications, anorexia has been linked with a variety of emotional and mental health consequences, including low self-esteem. Many adolescents with anorexia are often hard-driving perfectionists.

Despite the fact that they usually get good grades and excel in after-school activities, they often have low self-esteem and a need to control the people and things around them. These personality traits might be obvious or they might be subtle, but they can point towards a tendency towards anorexia.

Teens with anorexia nervosa can also have co-occurring mental health disorders, including:

  • Anxiety disorders
  • Depression
  • Substance use disorder

If your child has an eating disorder, contact the National Eating Disorders Association (NEDA) Helpline for support at 1-800-931-2237. 

For more mental health resources, see our National Helpline Database.

Treatment for Anorexia in Teens

If you suspect your teen may have an eating disorder, seek immediate treatment. Talk to your teen’s physician about your concerns and discuss treatment options, which often aim to:

  • Restore weight and nutrition that has been lost to severe dieting and purging
  • Treat any psychological disturbances, such as distortion of body image, low self-esteem, and interpersonal or emotional conflicts
  • Achieve long-term remission and rehabilitation, or full recovery

There's no one-size-fits-all treatment, but there has been significant advances in treating adolescents with anorexia over the past decade. Treatment should be guided by a physician and mental health professional who address the psychological and physical health of a teen throughout the treatment process.

Early intervention improves the chances for a teens' successful recovery from an eating disorder, so don't wait to seek treatment for your loved one. Your first step may be reaching out to your teen's primary care physician about eating disorders, the signs you may be noticing, and potential ways to help.

Treatment for an eating disorder may consist of nutritional rehabilitation and psychotherapy, including individual therapy (adolescent-focused therapy), family therapy (systemic family therapy), or even residential treatment. There are no FDA-approved medications for the treatment of anorexia.

A Word From Verywell

Caring for a teen with an eating disorder can be scary and overwhelming, and unfortunately, there is no easy fix. Because of the complicated nature of the disease, enlisting the help of professionals along with other parents who have experience with eating disorders is key. Start today by educating yourself on the signs of anorexia, building a solid support system, and reminding yourself that recovery for your teen is possible.

6 Sources
Verywell Mind uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. National Eating Disorder Association. Statistics & research on eating disorders.

  2. Gravina G, Milano W, Nebbiai G, Piccione C, Capasso A. Medical complications in anorexia and bulimia nervosaEMIDDT. 2018;18(5):477-488. doi:10.2174/1871530318666180531094508

  3. National Eating Disorder Association. Anorexia nervosa.

  4. National Eating Disorder Association. Health consequences.

  5. American Academy of Child and Adolescent Psychiatry. Eating disorders in teens.

  6. Lock J. Updates on treatments for adolescent anorexia nervosaChild and Adolescent Psychiatric Clinics of North America. 2019;28(4):523-535. doi:10.1016/j.chc.2019.05.001

By Barbara Poncelet
Barbara Poncelet, CRNP, is a certified pediatric nurse practitioner specializing in teen health.