The study found that while there were signs that this was not a "pleasant activity" for young women, the growth had emerged.
"Looking at child safety from the Internet, the report investigates adolescent sexuality and how these behaviors are affected by the content of computers and mobile devices.
In a study cited in the report, "unwanted sexual behavior," such as the anus, is shown as an increasingly serious problem, and the report asks 130 adolescents aged 16 to 18
Feminist writer Naomi Wolff pointed out the issue in the United States three years ago in an interview with Huffington Post.
"I visited a conservative university campus and a free university campus where anal fissure is the number one health problem women face because everyone is doing anal fissure when they are drunk and just meet, this is not the best way to do anal surgery, "she said.
"This is a very delicate thing.
So, the script is set by porn.
Internet pornography cannot be attributed solely to growth.
"In group discussions, men say anal sex is 'what we do for the match' and each hole is a goal, '" the study found '. ".
The report also raised concerns about the impact of pornography on brain development, claiming that it is easy for teens watching porn to "rewire" their brains, "especially on the path of happiness and reward ".
"Anal sex has a long and difficult history in Britain, and former Prime Minister Margaret Thatcher denied anal sex in 1986.
The AIDS epidemic has led her government to publish a full-page advertisement in the newspaper explaining the high risk of HIV transmission in anal sex.
Margaret Thatcher is worried that admitting anal sex will expose teenagers to "dangerous sex ".
Thatcher wrote it at that time.
Norman Fowler, minister of health: "I still object to certain parts of this ad.
Every young person who reads and learns about the practice they never know will be harmful.
Following Norman's reply to Thatcher, the advertisement was carried out in accordance with the original intention, saying: "Unless anal sex is mentioned, which is related to 85% of AIDS cases so far, advertising loses all medical authority and credibility.
According to data from PornHub, UK users ranked second in the world.
US users ranked first.
According to the data, the word "anal" did not appear in the top 10 search terms from the UK, but it did increase by 39% in search compared to the previous year.
Top search terms in the US have a strange family theme with "Step Mom", "step sister" and "mom" appearing at the top".
"Milf" is also a popular search term in many countries, including Ireland.
"Anal" does not appear in the list and is not one of the lists at the topgaining terms.
In 2015, "My Pony" saw a huge increase in Russia, entering the top 10, an increase of 438%.
As we all know, "My Pony" porn fans appeared in 2010, and recently there has been a surge in popularity in Belarus, Russia and Ukraine, especially among people between the ages of 18 and 35.