What is an STD? How can it transfer from one human to another?

Sexually transmitted diseases or an STD is an infection that can be transferred from a partner to another due to sexual contact. Sexual Transmitted Disease is also known as Sexual Transmitted Infection or STI. Any sexual contact with the infected partner can transfer the disease to another partner.

The primary cause of STD is bacteria, virus, yeast, and parasites. You can transfer the disease by sexual contact with a partner, which can include kissing, genital, and oral contact. The germs which cause STI usually hide in blood, saliva, and vaginal secretions.

Common Sexual Transmitted Diseases


HIV or human immunodeficiency virus attacks and weakens the human immune system. HIV itself is nothing, but it can cause many other diseases. If HIV remains untreated, it can move towards stage 3 or AIDS, which is a much more severe condition.


A person with scabies usually feels skin rash and skin ache. The infected people can’t be aware of their condition in the initial stages usually, thats why it spreads more rapidly.


This disease is usually transmitted through bacteria due to sexual contact with an infected partner. A pregnant woman, who has syphilis, can pass it to her unborn baby.

Molluscum contagiosum

Molluscum contagiosum is a skin infection which can transfer through sexual contact. There are four types of this infection:

  • MCV-1, the most common type
  • MCV-2, most commonly transmitted by sexual activities
  • MCV-3
  • MCV-4

Human Papillomavirus

Human Papillomavirus is a virus that affects the mucous membranes. These membranes can be cervix, anus, throat, and in the mouth. There are more than 100 types of HPV infected areas, and 40 of which are only in the genital area. If HPV infection remains untreated, it can lead to cervical cancer and genital warts.

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