Some STDs can be symptomatic within the first few days after exposure. Others take longer to show up.

Pain during intercourse is a symptom of many STIs, including chlamydia and gonorrhea. It may be accompanied by discharge from the vagina, penis, or anus.

Bleeding during sex is another common symptom. It may be accompanied by itchy blisters or sores.

Fever

The next day after having sex, STD symptoms can vary depending on the infection. For example, chlamydia often is reactive the next day, but it can also be asymptomatic.

Some STDs, such as gonorrhea and herpes, have no symptoms at all. However, it’s still important to get tested for any STI that you think you have or are concerned about.

Sores and lumps on your genitals are one of the first signs that you may have a sexually transmitted disease. They can be caused by syphilis, herpes, HPV and HIV.

Fevers, nausea and vomiting are also possible signs of a STI. They could be caused by HIV, syphilis, Hepatitis A and C.

Headaches are another symptom that can indicate a sexually transmitted disease. They are usually treated with ibuprofen, but they can be a sign of HIV, herpes or syphilis.

Frequent and painful urination is also a possible symptom of an STI. It can be caused by chlamydia, gonorrhea and herpes, but it can also be due to UTIs.

Chlamydia

Chlamydia is a bacterial infection that most often spreads when you have unprotected vaginal, oral, or anal sex. It can also be spread by unprotected sex with a pregnant woman.

Usually, you won’t notice any symptoms from a chlamydial infection until several weeks after you’ve had sex with an infected person. So, it’s important to see a doctor if you do start to have symptoms after you’ve been exposed to this STI.

Your doctor will check your urine for chlamydia bacteria with a swab. They’ll use a swab from the urethra (the tube that urine comes out of) in men or from the cervix in women.

If you test positive for chlamydia, it’s recommended that you tell all your sexual partners who were intimate with you in the 60 days before you started to have symptoms. This may increase the chance of your partner(s) getting tested and treated as well.

Gonorrhea

If you think you may have contracted gonorrhea, get tested right away. Gonorrhea doesn’t cause symptoms in most people, but it can lead to serious reproductive health concerns if left untreated.

Infections in the genitals are the most common, but infections in the throat (through oral sex on the genitals or anus) and rectum (through anal sex) also occur. They are less common than infections in the urethra or cervix, but can still be dangerous.

If you have gonorrhea and don’t get treatment, you can develop long-term complications that can be life-threatening. These include pelvic inflammatory disease in women and epididymitis in men, which can cause problems with fertility.

Herpes

Herpes is a sexually transmitted infection (STI) that causes blisters and sores on your genitals. It is caused by herpes simplex virus type 1 (HSV-1) and herpes simplex virus type 2 (HSV-2).

The first signs of herpes are a tingling sensation in or around the affected area, or groups of small red bumps that form into blisters. These blisters break open into painful sores and usually heal in 6 to 10 days.

If you have herpes, your doctor can diagnose the infection by doing a physical exam. He may also test you for the herpes virus using a test called a culture.

Herpes can be treated with medications. It is important to get treatment for the herpes virus as soon as possible so you can stop the symptoms and prevent further outbreaks. You should also use a condom or dental dam during sex to reduce your risk of spreading herpes.