STI vs STD: Difference and Comparison

The social life and busy schedules make people tend to lose their importance of health. There are many serious consequences to those, and people tend to be careless about them.

Key Takeaways

  1. STI stands for sexually transmitted infection, while STD stands for sexually transmitted disease.
  2. STI refers to the presence of an infection, while STD refers to the presence of a disease.
  3. STI and STD are used interchangeably, but STI is becoming more common.

STI vs STD

The difference between STD (Sexually transmitted disease) and STI (Sexually transmitted infection) is based on the time and stage of its seriousness. STI (Sexually transmitted infection) is a beginning stage of a disease that can cause problems in the future, whereas STD (Sexually transmitted disease) is a fully developed disease that is already causing problems to an individual. 

STI vs STD
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STI is a type of infection that occurs due to any type of sexual activities mainly. They are infections that are still not developed in diseased thus, are less dangerous than they can be.

STD (Sexually transmitted disease) is a disease that is started out due to STIs (Sexually transmitted infection). There is no STD (Sexually transmitted disease) that has not been started from the STI.

Comparison Table

Parameters of ComparisonSTISTD
Full formThe full form of STI is Sexually transmitted infection.The full form of STD is a Sexually transmitted disease.
SymptomsThe symptoms of STI are not recognized and visible, which makes you unable to recognize the diseases.The symptoms of STD are recognized and visible, which are specific to the diseases implying something is wrong.
StagesSexually transmitted infections are the infections at the beginning stage of diseases.Sexually transmitted diseases are the final developed stages of sexually transmitted infection.
SeriousnessSexually transmitted infections are less serious than Sexually transmitted diseases.Sexually transmitted diseases are far more serious than Sexually transmitted infections.
ConsequencesThe microorganisms enter and start multiplying with time. The big amounts of these organisms can cause STDs.The body structure and parts are affected by the pathogens present, causing big troubles.

What is STI?

The full form of STI is a sexually transmitted infection. STI is a type of infection that occurs due to any sexual activities mainly.

This includes microorganisms that can be viruses, bacteria, or parasites, which are the cause of such infections. They get entered into the body and start multiplying with time.

Sexually transmitted infections are less serious than Sexually transmitted diseases. The microorganisms enter and start multiplying with time.

The large amounts of these organisms can cause STDs in the future. They can also be transmitted to another person’s body when it comes to contact with the skin of the infected person.

What is STD?

The full form of STD is a sexually transmitted disease. STD (Sexually transmitted disease) is a disease that is started out due to STIs (Sexually transmitted infection).

The symptoms of STDs are recognized and visible, which are specific to the diseases, implying something is wrong with the body and interference has been done.

Sexually transmitted diseases are the final developed stages of sexually transmitted infection, making it troubling your body, causing you a stage of unease and making it urgent to get diagnosed by a doctor.

Sexually transmitted diseases are far more serious than sexually transmitted infections. The body structure and parts are affected by the pathogens present, causing big troubles.

Main Differences Between STI and STD

  1. Sexually transmitted infections are less serious than Sexually transmitted diseases, whereas Sexually transmitted diseases are far more serious than sexually transmitted infections.
  2. The large amounts of these organisms can cause STDs, whereas the body structure and parts are affected by the pathogens present, causing big troubles. 
Difference Between STI and STD
References
  1. https://journals.lww.com/stdjournal/FullText/2017/11000/STI_Versus_STD__Coda.13.aspx
  2. http://www.ashastd.org/pdfs/STDI.pdf
  3. https://sti.bmj.com/content/83/suppl_1/i1.short
  4. https://sti.bmj.com/content/78/1/2.1?int_source=trendmd&int_medium=cpc&int_campaign=usage-042019

Last Updated : 26 August, 2023

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