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Diseases of the Urinary and Reproductive System. Warning: Some images may be disturbing. Urinary System. Female Reproductive Organs. Male Reproductive System. Normal Flora of the Urinary and Reproductive Systems. Normal urine is STERILE – external skin contamination possible
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Diseases of the Urinary and Reproductive System Warning: Some images may be disturbing
Normal Flora of the Urinary and Reproductive Systems • Normal urine is STERILE – external skin contamination possible • Most common bacterial in the vagina is lactobacillus • Acid production keeps pH low and prevents other bacteria from growing • Candida albicans normal flora of the vagina • Male urethra is usually sterile
Diseases of the Urinary System • Urethritis – inflammation of the urethra • Cystitis – bladder infection • Ureteritis – infection of the ureters • Pyelonephritis – kidney infection
Cystitis • Inflammation of bladder • Symptoms are often difficult, painful, urgent urination • Female urethra is only 2 inches long and close to anal opening – E. coli is most common infective agent • Rate of bladder infection is 8 times higher in women than men • 100 CFU’s or more in urine sample is over the limit • Treatment – trimethoprin-sulfamethoxazole
Pyelonephritis • Untreated cystitis can lead to inflammation of the kidneys • Fever and back pain • Causative agent is usually E. coli • Potentially life threatening condition • IV antibiotics
Bacterial Diseases of the Reproductive System • New terminology STD or STI? • STI – Sexually transmitted infections is now the preferred terminology • More than 30 bacterial, viral or parasitic infections that are identified as STI’s • In US 15,000,000 new cases of STI’s per year
Gonorrhea • Neisseria gonorrhoeae Gram – diplococcus • 700,000 cases reported each year in the US • 60% of the patients are ages 15-24 • It’s easy to get • Men – single unprotected exposure results in infection 20-35% of the time • Women – single unprotected exposure results in infection 60-90% of the time
Gonorrhea in men • Painful urination • Pus containing discharge from the penis • Symptoms appear in a few days • Treatment with cephalosporin antibiotics • REMEMBER it’s now a superbug!
Gonorrhea in women • Difficult to diagnose • Only the cervix is infected • Few women know that they are infected • Abdominal pain from complications of PID may be present
Chlamydia trachomatis • Common cause of PID in women • Five times as many cases in women than men • Most are unaware of the infection because symptoms are mild in men and asymptomatic in women • Complications of Chlamydia associated PID in women can be: • Infection of cervix • Uterine tubes – SALPINGITIS and tubal pregnancy • Ovaries and uterus
Syphilis Treponema pallidum Gram negative spirochete Produces inflammatory immune response to damage host tissue Treponema probably evolved from a tropical skin disease called yaws and was imported into the new world by European explorers Three stages to the disease
Primary Stage Syphilis • Initial sign is a small sore called a CHANCRE • Usually painless but exudes a very infective fluid • Women may not know they are infected because the cervix is the site of the chancre • Sore disappears in a few weeks • Bacteria enter the bloodstream and lymphatic system
Secondary stage syphilis • Several weeks after the primary stages skin rashes appear that are characteristic of secondary syphilis • Palms and soles of feet • Lesions from the rash are very infective • Difficult to diagnose at this stage • Symptoms usually resolve in 3 months
Latent period • After secondary stage the disease enters the latent phase • No symptoms present • After 2-4 years the disease is no longer infectious • Most cases treated or not do not progress past this stage
Tertiary stage syphilis • Up to 25% of untreated case enter this phase • Skin lesions called gummas are this in this stage • Neurologic symptoms may also appear • This stage is very rare today
Treatment • Penicillin is still used with good results for primary and secondary stage disease
Genital Herpes • Caused by HSV-2 • HSV-1 causes cold sores can can cause genital herpes • IN THE UNITED STATES ONE IN FOUR PERSON OVER THE AGES OF 30 IS INFECTED WITH HSV-2!!!!!!! • Most are unaware they are infected • Remember Herpes is forever • No cure only management of the condition
Genital warts • Caused by papillomaviruses • Million new cases in the US each year • Common infection 25% of women ages 14-59 may be infected • Papillomavirus types 16 and 18 cause cervical cancer, types 6 and 11 genital warts • HPV vaccine – Gardasil