Image caption Teachers fear boys are getting sucked into anxiety about their appearance

Boys increasingly have low self-esteem about their body image, teachers warn.

The Association of Teachers and Lecturers claims the promotion of ideal body images is reducing both boys' and girls' confidence in their own bodies.

Last year, the All Party Parliamentary Group on Body Image recommended all children took part in compulsory body image and self-esteem lessons.

The union will discuss the issue of body image among pupils at its annual conference in Liverpool next week.

In a survey of 693 members across the UK, the union found 78% thought girls suffered low self-esteem and 51% thought boys had low confidence in their body image.

In addition, 59% of staff said that worries about body image made female pupils anxious and 30% said it caused anxiety in male pupils.

Some 55% said that girls were "ultra-sensitive" to comments about their appearance and 27% said boys took comments to heart.

Diets

Pressure to achieve the perfect body meant girls were likely to go on a diet, according to 54% of staff and boys were prone to start excessive exercise regimes, said 30% of those surveyed.

Despite knowing about airbrushing, the girls still feel the need to aspire to unrealistic notions of beauty Teacher

Asked where the pressure came from, 94% of those surveyed said they believed the media, including television, magazines, music videos, adverts and social media was the biggest influence on female pupils and also on male pupils (68%).

Peers of the same sex were also highlighted as a key cause of pressure on female pupils to look good by 83% of respondents and on male pupils by 54%.

A teacher at a secondary academy in Wandsworth, London, said: "I find that boys who are shorter than their peers are extremely sensitive and manifest either disruptive behaviour or are very withdrawn."

One early years teacher in England said: "I work with four to five-year-olds and some say things like, 'I can't eat cheese, it will make me fat!'"

A teacher at a secondary school in Northern Ireland said: "In my year 11 GCSE English class, the girls all openly admitted to feeling pressure about body image and many of the boys confessed to it too, although they said that usually they wouldn't admit to it affecting them.

Media playback is unsupported on your device Media caption Natasha Devon, body image campaigner: "They don't feel... they can discuss this"

A head of department at a secondary school in Exeter said: "Digital and social media are a nightmare with 'anonymous' sites that slate students in the most appalling terms on their appearance, personality and anything judge-able."

"Despite knowing about airbrushing, the girls still feel the need to aspire to unrealistic notions of beauty."

'Tremendous pressure'

Association of Teachers and Lecturers general secretary Mary Bousted said: "Young people are under tremendous pressure to have or maintain often unrealistic body images portrayed in the media.

"ATL members report that this not only impacts on female pupils but increasingly leads to low self-esteem, lack of confidence and anxiety in male pupils too.

"With academic and other social pressures, young people already have enough to deal with."

Last November, Central YMCA Qualifications announced plans for a UK qualification in body image.

The award - body image and the relationship to well-being - will cover topics such as body image in the media, self-esteem, diet and exercise and aims to help young people aged 11 to 14 build a more positive body image.

It is hoped the qualification - currently with the exams regulator, Ofqual, for approval - will be rolled out in secondary schools in the UK from next year, possibly as part of PSHE (personal, social and health education) or free study periods.