By skyforbes 
As was already mentioned, many different STD types can be transmitted sexually, and many can be asymptomatic. Although, you should not wait until the symptoms appear before visiting a doctor. We recommend seeking medical advice if you think you have had exposure to an STD or had sex with a partner who has or may have an STD. We describe the most common sexually transmitted diseases and their symptoms below.
Chlamydia
Chlamydia is a sexually transmitted infection that can affect the anus as well as the genitals. Symptoms are often not present, but they include vaginal or penile discharge, pain with intercourse, painful urination, or rectal bleeding (if it involves the rectum).
STD testing includes a simple swab depending on the area affected, including the penile meatus (the opening where urine exits), anus/rectum, and the cervix. Fortunately, Chlamydia is curable with antibiotics.
Gonorrhea
Gonorrhea is another sexually transmitted disease that is also primarily asymptomatic. When symptoms are present, they tend to be vaginal or penile discharge. Pain with intercourse can be present, as well as bleeding and painful urination.
Gonorrhea, similar to Chlamydia, can also be tested using a simple swab depending on the area affected. You can also treat this with antibiotics.
Syphilis
Syphilis is a sexually transmitted disease that can present in many ways. There are different stages of syphilis, and each may present with various symptoms ranging from genital ulcers that are painless to rashes on the body and palms and soles of the feet. If left untreated, serious complications can occur. As such, testing for infection with syphilis is critical. Testing includes taking a blood sample. In some cases, testing the fluid from the sores can be diagnostic.
Genital Herpes
Herpes is transmitted sexually, and some people infected with this do not have any symptoms at all. Yet, it can spread despite no symptoms. For some, a painful blister that can turn into an ulcer develops. NYC STD testing for herpes includes blood testing and collecting a sample from the sore with a swab.
Hepatitis
Hepatitis B is a virus that can be transmitted from an infected mother to her neonate during delivery. It is also transmitted sexually through blood and bodily fluids, like semen and blood-to-blood contact. Symptoms can vary from rashes, yellowing of the skin, dark urine, fatigue, or none at all. Unrecognized hepatitis infection can lead to severe complications, including cirrhosis and liver cancer.
Testing for Hepatitis B and C includes a blood test. A physician should evaluate your symptoms for an accurate diagnosis and treatment plan to be formulated that is individualized to you. You can also discuss risks factors with your doctor to have a better understanding.
HIV
HIV is a virus that can also be transmitted through bodily fluids and blood and passed on from the mother to her newborn child. Symptoms can be present, be non-specific, or not present at all. Testing includes a blood test. Although there are now improved medications to combat HIV, there still isn’t a cure, making prevention the most critical aspect in avoiding infection.