Significant and sustained weight loss or low weight can lead to infertility.
Individuals with anorexia have a distorted image of themselves and their body; seeing themselves as fat or overweight when they are not.
To help treat anorexia, the individual needs to recognise that there is a problem and to accept that their actions and behaviour are not normal.
People with anorexia try to limit their intake of food in order to keep their weight as low as possible.
Individuals with anorexia may go to great lengths to hide their behaviour from their family and friends, for example lying about food intake.
Anorexia can be associated with low self-esteem, depression and self-harm.
Body dysmorphia is an anxiety disorder where the individual spends a lot of time feeling worried about their appearance and having a distorted view of how they look.
Many people with anorexia may repeatedly weigh themselves or check their body in the mirror.
Treatment for anorexia often includes psychological treatment (talking to a therapist or counsellor) and advice about eating and nutrition to help gain weight safely.
Some people with anorexia may exercise excessively in order to maintain a low weight.