Sunday, May 6, 2012

Microbicide & Safe Sex (11)



Pubic Lice
Pubic Lice also called crab lice or "crabs," pubic lice are parasitic insects found primarily in the pubic or genital area of humans. Pubic lice infestation is found worldwide and occurs in all races, ethnic groups, and levels of society.
Pubic lice usually are found in the genital area on pubic hair; but they may occasionally be found on other coarse body hair, such as hair on the legs, armpits, mustache, beard, eyebrows, or eyelashes. Pubic lice on the eyebrows or eyelashes of children may be a sign of sexual exposure or abuse.

Pubic lice have forms: the egg (also called a nit), the nymph, and the adult.
Nit: Nits are lice eggs. They can be hard to see and are found firmly attached to the hair shaft. They are oval and usually yellow to white. Pubic lice nits take about 6-10 days to hatch.

Nymph: The nymph is an immature louse that hatches from the nit (egg). A nymph looks like an adult pubic louse but it is smaller. Pubic lice nymphs take about 2-3 weeks after hatching to mature into adults capable of reproducing. To live, a nymph must feed on blood.

Adult: The adult pubic louse resembles a miniature crab when viewed through a strong magnifying glass. Pubic lice have six legs; their two front legs are very large and look like the pincher claws of a crab. This is how they got the nickname "crabs." Pubic lice are tan to grayish-white in color. Females lay nits and are usually larger than males. To live, lice must feed on blood. If the louse falls off a person, it dies within 1-2 days.

Tuesday, May 1, 2012

Microbicide &Safe Sex (10)



Pelvic inflammatory disease (PID) is an infection of the female reproductive organs. It usually occurs when sexually transmitted bacteria spread from your vagina to your uterus and upper genital tract. Many women who develop pelvic inflammatory disease either experience no signs or symptoms or don't seek treatment. Pelvic inflammatory disease may be detected only later when you have trouble getting pregnant or if you develop chronic pelvic pain.

Symptoms in PID range from subclinical (asymptomatic) to severe. If there are symptoms, then fever, cervical motion tenderness, lower abdominal pain, new or different discharge, painful intercourse, or irregular menstrual bleeding may be noted. It is important to note that even asymptomatic PID can and does cause serious harm. Laparoscopic identification is helpful in diagnosing tubal disease, 65–90% positive predictive value in patients with presumed PID. Regular Sexually Transmitted Infection (STI) testing is important for prevention. Treatment is usually started empirically because of the serious complications that may result from delayed treatment. Definitive criteria include: histopathologic evidence of endometritis, thickened filled fallopian tubes, or laparoscopic findings. Gram-stain/smear becomes important in identification of rare and possibly more serious organisms.

A woman can get PID if bacteria (germs) move up from her vagina and infect her pelvic organs. Many different types of bacteria can cause PID. But, most cases of PID are caused by bacteria that cause 2 common sexually transmitted infections (STIs) — gonorrhea and chlamydia. It can take from a few days to a few months for an infection to travel up from the vagina to the pelvic organs.
You can get PID without having an STI. Normal bacteria found in the vagina and on the cervix can sometimes cause PID. No one is sure why this happens. You can get pelvic inflammatory disease without having an STI. Normal bacteria found in the vagina and on the cervix can sometimes cause pelvic inflammatory disease. No one is sure why this happens.

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