More people know about chlamydia today than they did seven years ago, new data from the Office of National Statistics show.
Some 80% of men recognised that chlamydia was a sexually transmitted infection when questioned in 2006/7 but only 35% could do so in 2000/1.
Women were more knowledgeable in general and figures were similar with 92% recognising it as a STI in 2006/7 and 65% in 2000/1.
When questioned about the symptoms of chlamydia, women were again more likely to give a correct response than men with 41% versus 25% getting five out of five questions correct.
Anne Weyman, Chief Executive, fpa said that it is imperative that people know of chlamydia as it doesn't show any symptoms.
"But," she continued, "It's no good raising people's awareness of STIs if they can't get rapidly tested and treated because their Primary Care Trust won't provide decent sexual health services for them.
"Sexual health clinics are already overburdened, yet a parliamentary reportpublished this month shows only 5% of general practices in England offer testing and diagnosis of STIs.
"In some areas Primary Care Trusts (PCTs) have withheld money for chlamydia screening and diverted it to other nonsexual health services instead."