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| O | Obstetrician is a doctor, who has works with pregnant women, and specializes in pregnancy and childbirth. Thus, the obstetrician is the woman’s doctor and the doctor, who watches after the development of the fetus as well. Most obstetricians are also gynecologists.
Oil – based Lubricant is a kind of a lubricant, made of something oily. The oil eats holes in a latex condom, when people have sex, which makes sexually transmitted diseases causing germs go through these holes and get inside people’s bodies. To the Oil – Based Lubricants Vaseline, different lotions and mineral oils can be referred.
Opportunistic Infection is a disease of an infection in a person, who has HIV. It is called Opportunistic, because it uses the body’s weakened immune system. As soon as a person gets an Opportunistic Infection, it means, that he or she has AIDS. It means that changes in the person’s immune system work may be noticeable by any doctor. About 8 – 11 years are needed for HIV to destroy the immune system, so, that it becomes unable to fight any germs. However, if a person does not have HIV in his organism, his immune system is able to fight almost any Opportunistic Infection, and he or she does not become sick. Nowadays, there are a lot of different medicines, used to treat most of the Opportunistic Infections.
Oral Sex is when someone kisses, licks or sucks another person’s genitals to make him or her feel good. One way of oral sex is putting a penis into the mouth, the second way is touching the penis, anus, clitoris or vulva with the mouth, lips or tongue. Sexually transmitted diseases can be transmitted this way. It may happen, if blood or sexual fluid gets inside someone’s mouth, or if there is a contact with a sore from a diseases, like herpes or syphilis. In addition, if infected blood from someone’s mouth gets inside other person’s penis, anus or vulva, sexually transmitted diseases may be caught as well. Using non – lubricated latex condoms and moisture barriers may protect people from getting sexually transmitted disease during having anal sexual contact.
Oral Contraceptive is also known as birth control pill. There are two kinds of contraceptive pills: the Combination Pill and the Minipill. These pills are prescribed to be taken every day and they provide protection only against unplanned pregnancy, but not against any of the sexually transmitted diseases.
Organ is any part of the body. Each organ plays its own role for a person to stay alive.
Orgasm is a strong, intense and good feeling, happening in the genitals during sex. Men usually ejaculate, when they feel orgasm, and female may have spasms, lasting from several seconds, up to a minute, or even longer. People can have an Orgasm, if they only think about sex, or while masturbating. Orgasm does not occur every time, when some person has sexual contact.
Ovary is the part of a reproductive system of a woman, where eggs are kept. A girl arrives with all of the eggs she will ever have. Each woman has two ovaries of a size of a strawberry, located in the pelvis, one at each side of the uterus at the end of each fallopian tube. Since a girl begins to have her menstrual period, one of her ovaries pushes one egg out along the fallopian tube for it to be fertilized during one menstrual period. The ovaries work in turn. Women’s ovaries also produce some special hormones, which keep the development of female body characteristics, like breasts, body shape, and body hair under control; and moreover, they help he menstrual cycle to work and regulate pregnancy.
Ovulation occurs when a woman has one of the eggs ready to go from the ovary along the fallopian tube toward the uterus to be fertilized with man’s sperm. Ovulation usually happens in about two weeks after a woman had her menstrual period.
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