Is there a common STD?

An STD that is on the increase particularly amongst the young, one which affects both men and women is Chlamydia. It is very common in the under 25 age group with around one person in ten who have had an STD test showing signs of the infection. For most people they will not know that they have the disease, without obvious signs or symptoms, unlike many others sexually transmitted diseases.
 
Chlamydia is a bacterial infection of your genital tract that spreads easily through sexual contact and because the disease does not have obvious signs, it is often referred to as the invisible infection. When the symptoms do appear in men, they are likely to be discharge from the penis and possible more frequent and painful urinating. In the case of women, changes in the normal discharge from the vagina, more frequent and painful urinating, pain during sex, bleeding between, or irregular periods. Testing for Chlamydia is simple and is undertaken at clinics throughout London and other cities. It is recommended that all those under the age of 25 years, and sexually active, are regularly tested at least every year, also every time they change partner to make sure they’re clear.