Chlamydia, often misspelt Clamidia, is one of the most commonly reported bacterial sexually transmitted diseases (STDs), and is caused by the Chlamydia trachomatis bacterium. This may infect the urethra and rectum in both sexes and the cervix in women. Occasionally chlamydia can also affect other parts of the body, including the throat, lungs, liver and eyes.

Global chlamydia statistics show that an estimated 92 million new chlamydia infections occur each year, affecting more women (50 million) than men (42 million). Chlamydia can cause serious problems later in life if left untreated.

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http://www.avert.org/chlamydia.htm

Herpes,there are eight types of human herpes virus. It is the herpes simplex viruses types I and II - known as HSV-1 and HSV-2 - that are responsible for genital herpes. HSV-2 is more frequently transmitted by sexual contact and is one of the most prevalent STDs worldwide; for example, research suggests that one in five Americans is a carrier of HSV-2.¹

In general:

• HSV-1 infects the mouth, lips or nose, causing cold sores.
• HSV-2 infects the genital and anal area.

More infomation on Herpes see:-

http://www.avert.org/herpes.htm

Genital warts, caused by some types of HPV (human papilloma virus), can appear on the skin anywhere in the genital area as white or flesh-coloured, smooth, small bumps, or larger, fleshy, cauliflower-like lumps. There are more than 100 different subtypes of HPV, and around 30 of them specifically affect the genitals. Other HPV subtypes cause warts to grow on different parts of the body, such as the hands.

Not everyone infected with HPV will develop genital warts. Some will be infected with a strain that does not produce warts, or they will remain asymptomatic (i.e. no warts will appear) even though the virus is present in the skin or mucous membranes around the genital area or on the cervix in women. Those who do go on to develop warts will usually notice them 1 to 3 months after initial infection.

More infomation on genital warts see:-

http://www.avert.org/genital-warts.htm

Gonorrhea, also spelt gonorrhoea (and once known as the clap), is a sexually transmitted infection caused by the bacterium Neisseria gonorrheoae. It affects both men and women and can infect the cervix, urethra, rectum, anus and throat. Gonorrhea is one of the most common sexually transmitted diseases (STDs). Global gonorrhea statistics show that an estimated 62.35 million cases of gonorrhea occur each year, affecting more women than men. Gonorrhea is easily curable but if left untreated it can cause serious health problems such as pelvic inflammatory disease (PID), which can lead to abdominal pain and ectopic pregnancy in women. Untreated, gonorrhea can also lead to infertility, meningitis and septicaemia.

More infomation on Gonorrhea see:-

http://www.avert.org/gonorrhea.htm

Syphilis is a sexually transmitted disease (STD) caused by the bacterium Treponema pallidium. The infection is usually sexually transmitted, in which case it is called venereal syphilis. It may also be passed from an infected mother to her unborn child, in which case it is known as congenital syphilis.

Syphilis has been uncommon since penicillin become widely available in the 1950s, although global syphilis statistics show that in recent years the number of cases has been rising. The World Health Organisation estimates that 12 million new cases of venereal syphilis occurred in 1999.

^{More infomation on Syphilis see:-}

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