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Genital warts are a sexually transmitted infection caused by certain types of human papillomavirus (HPV). [1] They may be flat or project out from the surface of the skin, and their color may vary; brownish, white, pale yellow, pinkish-red, or gray.
Syphilis (/ ˈ s ɪ f ə l ɪ s /) is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum. [1] The signs and symptoms depend on the stage it presents: primary, secondary, latent or tertiary.
Gonorrhoea or gonorrhea, colloquially known as the clap, [7] is a sexually transmitted infection (STI) caused by the bacterium Neisseria gonorrhoeae. [8] Infection may involve the genitals, mouth, or rectum.
Bacterial vaginosis (BV) is an infection of the vagina caused by excessive growth of bacteria. [6] [12] Common symptoms include increased vaginal discharge that often smells like fish. [2]
Cestoda is a class of parasitic worms in the flatworm phylum (Platyhelminthes). Most of the species—and the best-known—are those in the subclass Eucestoda; they are ribbon-like worms as adults, commonly known as tapeworms.
The sex organs of the green algae Chara are the male antheridia (red) and female archegonia (brown). A sex organ, also known as a reproductive organ, is a part of an organism that is involved in sexual reproduction.
Although an average individual may have an aversion to particular bodyparts, the hallmark of eurotophobia is that it exceeds the disinclinations shown by most people, and is a trait that can inauspiciously affect both men and women. [12]
Sex differences in humans have been studied in a variety of fields.Sex determination generally occurs by the presence or absence of a Y chromosome in the 23rd pair of chromosomes in the human genome.