What Is the Definition of an STD?
“STDs are diseases that are passed from one person to another through sexual contact,” a representative of the CDC says.
What Are the Most Common STDs?
According to the CDC, some of the common STDs are chlamydia, gonorrhea, herpes simplex virus type 2 (HSV-2), human immunodeficiency virus (HIV), human papillomavirus (HPV), and syphilis. "Many of these STDs do not show symptoms for a long time," per the CDC, "but they can still be harmful and passed on during sex.”
What Are the Ways I Can Get an STD?
Virtually all STDs can be transmitted through anal, vaginal, or oral sex. In addition, some STDs can also be transmitted through close skin-to-skin contact, even if no intercourse occurs.
HPV, for example, can be spread through skin-to-skin touching. In addition, “Molluscum contagiosum, a viral skin disease, can be spread through sexual or casual contact, as can scabies, an itchy skin condition caused by a mite infestation. It is also possible to get scabies from an infected sleeping bag or bed,” says Edward W. Hook III, MD, an endowed professor of infectious disease translational research in the departments of medicine, epidemiology, and microbiology at the University of Alabama in Birmingham, who works with the CDC.
STDs don’t just affect the genital regions: “Oral herpes can be transmitted through oral and genital sex,” says Dr. Hook.
What Are the Signs That I Might Have an STD?
It is important to remember that STDs may have no symptoms. However, new vaginal or urethral discharge or a new rash after sexual contact should be evaluated by a medical professional.
When symptoms do occur, they can include the following:
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Chlamydia
Symptoms of chlamydia can include vaginal discharge in women, penile discharge in men, and burning during urination in men and women.
Gonorrhea
Gonorrhea can cause thick, cloudy, or bloody discharge from the vagina or urethra, and pain or burning when peeing. If you have gonorrhea in your anus, it may cause itching in and around the anus, discharge from the anus, and pain when defecating. Gonorrhea in the throat may cause a sore throat.
Hepatitis B
Acute hepatitis B can cause fever, fatigue, loss of appetite, nausea or vomiting, abdominal pain, dark urine, clay-colored bowel movements, joint pain, and jaundice (yellowing of the skin and whites of the eyes). Symptoms can appear anywhere from six weeks to six months following exposure to the hepatitis B virus. Chronic hepatitis B sometimes causes symptoms similar to acute disease.
Genital Herpes
Signs of genital herpes typically include red bumps that develop into blisterlike sores in the genital area and sometimes on the buttocks or thighs. A new infection with HSV-2 — the virus that causes most cases of genital herpes — may also cause flulike symptoms, including fever, headache, feeling tired and achy, and swollen glands.
Oral Herpes
Symptoms of oral herpes can include itching of the mouth or lips, sores or blisters on the lips or inside the mouth, and flulike symptoms such as fever, headache, body aches, and swollen glands.
HIV
Early symptoms of HIV infection can resemble those of the flu: fever, headache, muscle aches, and sore throat. They may also include swollen lymph nodes, diarrhea, nausea and vomiting, a fungal infection of the mouth, and a rash on the abdomen, arms, legs, or face. If HIV goes untreated, later symptoms can include fatigue, weight loss, night sweats, joint pain, short-term memory loss, and recurrent infections.
HPV
Most strains of HPV cause no symptoms and are detected only after abnormal cells are discovered during a Pap smear. However, some types of HPV cause genital warts, which appear as skin-colored or whitish growths on the genitals or anus.
Molluscum Contagiosum
Often the only sign of this skin disease is pink or flesh-colored bumps with a dimple (indentation) in the center. It is most common in children, who typically get it from skin-to-skin contact or from shared towels or similar items. In adults, it can be sexually transmitted.
Pubic Lice
Symptoms of pubic lice include itching in the genital area, tiny bugs in your pubic hair, and visible nits (eggs) on hair shafts. Pubic lice can also infest the hair on legs, armpits, eyebrows, eyelashes, and other facial hair such as mustaches and beards.
Scabies
This skin infestation causes intense itching that is typically worse at night. It can also cause small red bumps or a rash and raised lines on the skin where the mites have burrowed.
Syphilis In the primary stage, syphilis causes a painless sore, or ulcer, at the location the bacteria entered the body, often in the genital area. In the secondary stage of syphilis, a rash may occur on the torso and elsewhere on the body.
Trichomoniasis
Another common STD, trichomoniasis is a parasitic infection that can cause burning and itching in the genital area for men and women as well as painful intercourse. Trich can also cause a smelly discharge and painful or frequent peeing.
Can I Have an STD and Not Know It?
Yes. Many STDs don’t cause any symptoms, especially during the early stages, so the only way to know for sure if you have one is to get tested. Keep in mind that you can get an STD from having sex with someone who has no symptoms and may not know they have an STD.
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