What are STD's? Causes, Symptoms, Diagnosis & Prevention

Medically Reviewed by Dr Sravya, MBBS, MS 



Sexually transmitted diseases (STD) are infections transmitted through sexual contact, including vaginal, oral, or anal intercourse. Some diseases, like Herpes and HPV, can be transmitted through skin contact. Pregnant women can transmit it to babies during pregnancy or childbirth.1 Sexually transmitted diseases transmitted through vaginal, anal, and oral intercourse, are prevalent and can cause major health issues if untreated. Testing is simple and most are manageable. Sexually transmitted diseases or infections (STIs) are acquired through sexual contact, often through blood, semen, or bodily fluids. Nonsexual transmission can occur during pregnancy or childbirth, and STIs can be contracted from seemingly healthy individuals.

Table of Contents

Symptoms of STDs

An STD can manifest in various ways, including none at all, and may not be detected until issues arise or a partner is diagnosed.

Risk Elements

Anyone who has sex faces the possibility of developing an STI. Such risk could arise from several factors, including:

Causes of Sexually Transmitted Diseases

Diagnosis of STDs

Diagnosis of sexually transmitted diseases (STDs):

Prevention of STDs

There are several steps you can take to prevent or reduce the risk of sexually transmitted diseases or sexually transmitted infections (STIs).


The prognosis for sexually transmitted disease gets better with treatment. Treatment slows down the progression of the disease and improves the long-term health of the patient. The appropriate treatment is dependent on the diagnosis. For those diagnosed with a STI, it is important to use condoms while having sex and to inform any sexual partners of their risk of status.

Prevention is very important for reducing the number and impact of this disease. Taking PrEP prevents a person from getting HIV. If you suspect you may have a STD, you may not want to go to a doctor. But knowing your health status is always a good idea. Getting the right diagnosis can alleviate an anxious mind, help you find the right treatment, and avoid long-term complications.

Frequently Asked Questions

Yes, males can acquire fungal infections, particularly in the genital area. Although it is less frequent in men than in women, men must recognize the signs and seek proper treatment. 

No, fungal infections are not classified as sexually transmitted infections. However, sexual activity can sometimes upset the natural balance, increasing the risk of infection.

While vaginal yeast infections are more frequent in women, they can occur in men as well, mainly through sexual transfer.

For minor yeast infections, over-the-counter antifungal treatments can be beneficial. However, if symptoms persist or worsen, it is essential to seek medical attention.

Stress can impair the immune system, making it more difficult to battle illnesses such as yeast infections.