The focus of pleasure shifts to the genitals and fixation can lead to excessive masculinity in females or in males, or, if you're female, need for attention or domination.

性器官成为了快乐的主要来源,固着在此阶段，会导致女性或男性,过分男性化，或是导致女性产生对于关注或控制的欲求。

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It may be provoked by infection with Chlamydia trachomatis, a sexually transmitted denizen of the genital tract, and Ureaplasma urealyticum and Mycoplasma fermentans, two other inhabitants of the genitals.

ECONOMIST: Bugged by disease | The

An estimated 16% of U.S. adults are infected with herpes simplex virus type 2 (HSV-2), which can cause bumps, blisters, or sores on the genitals and surrounding areas, along with pain and itching.

CNN: Symptom-free herpes contagious 10% of the time

The city has sought to have the suit dismissed, arguing that sex as recorded on the birth certificate refers to biological and physical characteristics like the nature of the genitals, while the lived experience of socially constructed roles are gender, a separate category.

BBC: Transgender Americans take on New York