BEIJING — During the past two weeks, China’s media watchdog has taken 2,000 skeins and commercials off the air for being sexually suggestive or vulgar as a crackdown on smut and political incorrectness intensifies before next week’s high-level Communist Party congress.

Late last month, the State Administration of Radio, Film and Television (SARFT) issued a circular banning radio and TV commercials and programs involving drugs, sex-related health supplements, drugs for sexually transmitted diseases, sex toys, as well as “vulgar ads” for breast enhancement and female underwear.

“Radio and TV stations across the country have examined their broadcasting lists and the month-long efforts have taken effect,” SARFT said in a statement.

The “no sex” campaign began early last month with the banning of two sexually suggestive radio chatshows in the southwestern province of Sichuan.

“SARFT has always called on all media to hold onto their sense of responsibility, but some of them surrendered to audience ratings and profits and caused a vile impact,” the statement said.