Sexually Transmitted Diseases (STD) also known as a sexually transmitted infection (STI) or venereal disease (VD) is transmitted between human through sexual contacts, which includes vaginal intercourse, oral sex and anal sex. In the recent years, public health officials started using the term sexually transmitted infection instead of sexually transmitted disease as the former has a border range of meaning. The difference between the two terms being that STI simply means that the person is infected with the virus, bacteria or parasite and not necessarily show symptoms of feeling sick whereas an STD would mean that the person shows signs of being sick. Primary STI BacterialChancroid (Haemophilus ducreyi) Chancroid is a sexually transmitted bacterial infection caused by Haemophilus ducreyi, fastidious gram-negative coccobacillus and is characterised by painfully sores on the genitalia. It is also a risk factor for contracting Human immunodeficiency virus (HIV). Symptoms The symptoms usually are visible within one day to two weeks of incubation period, which begins with a small bump and turns into an ulcer within a day of it`s appearance. The size of the ulcers varies dramatically from 3 to 50 mm across and has sharp defined, undermined ragged borders. The ulcers are very painful and are covered with a gray or yellowish-gray material that bleeds easily if traumatized. There is only a single ulcer in most infected men and appears in coronal sulcus of the uncircumcised glans penis, whereas women frequently have four or more ulcers, characterized by dysuria (pain with urination) and dyspareunia (pain with intercourse).The common location in women is the labia majora. Treatment The Centers for Disease Control and Prevention recommend a single oral dose (1 gram) of Azithromycin or oral Erythromycin or a single IM dose of Ceftriaxone for seven days.Chlamydia (Chlamydia trachomatis) This infection is caused by bacterium Chlamydia trachomatis and is one of the most common sexually transmitted infections worldwide. Chlamydia is a major cause of genital and eye disease among humans.Symptoms Chlamydial infection of cervicitis is asymptomatic in about half and three-quarters of all infected women. The infection which is transmitted through vaginal, anal or oral sex, if not detected timely can cause pelvic inflammatory disease (PID), a generic term for infection of the uterus, fallopian tubes, and/or ovaries. PID can cause scarring inside the reproductive organs, which can later cause serious complications during pregnancy and chronic pelvic pain.Symptoms that may occur includea) Pain in the abdomenb) Vaginal bleeding or discharge, c) Dyspareunia (painful sexual intercourse)d) Fevere) Urinary urgency (painful urination or the urge to urinate more frequently than usual)In 50% of cases among men, Chlamydia shows symptoms of infectious urethritis (inflammation of the urethra) characterised by a) Painful or burning sensation when urinatingb) Unusual discharge from the penisc) Swollen or tender testicles d) Fevere) It can spread to the testicles causing epididymitis, which in rare cases can cause sterility if left untreatedChlamydia can also cause Chlamydia conjunctivitis or trachoma, reactive arthritis (reiter`s syndrome), urethritis (inflammation of the urethra) - especially in young men, perinatal infections, lymphogranuloma venereum, an infection of the lymph nodes and lymphatics.Chlamydial infections can be diagnosed through Nucleic acid amplification tests (NAAT), such as polymerase chain reaction (PCR), transcription mediated amplification (TMA), and the DNA strand displacement amplification (SDA). Treatment Chlamydia trachomatis infection can be effectively cured with antibiotics once it is detected. The Centers for Disease Control and Prevention recommend Azithromycin 1 gram oral as a single dose or doxycycline 100 milligrams twice daily for seven to fourteen days or tetracycline or erythromycin. Granuloma inguinale or (Klebsiella granulomatis) Granuloma inguinale is a bacterial disease that spreads from one host to another through contact with the open sores and is characterized by ulcerative genital lesions. SymptomsAfter 10-40 days of contact with the bacteria small, painless nodules appear on the shaft of the penis, the labia, or the perineum which later bursts, creating open lesions mutilating the infected tissue, with extensive leakage of mucus and blood from the highly vascular lesionsThe infection can be diagnosed through tissue biopsy and Wright-Giemsa stain.TreatmentStreptomycin, erythromycin or tetracycline treatment for 3 weeks or 12 weeks of treatment with ampicillin can help cure of the infection effectively. Gonorrhea (Neisseria gonorrhoeae) Caused by the bacterium Neisseria gonorrhoeae, Gonorrhea is a sexually transmitted disease which, if left untreated, may spread throughout the body, affecting joints and heart valves or cause epididymitis or pelvic inflammatory disease (PID).Symptoms Through Gonorrhea infection in half of the women is asymptomatic, it is usually characterised by vaginal discharge, pain during intercourse and lower abdominal pain. Burning with urination and discharge from the penis are common signs of infection among men. The symptoms occur within 4-6 after being infected. Gonorrhea was traditionally diagnosed with gram stain; however, newer polymerase chain reaction (PCR) based testing methods are becoming common.Treatment Gonorrhea is commonly treated with ceftriaxone.Syphilis (Treponema pallidum) Syphilis disease is caused by the spirochetal bacteria Treponema pallidum subspecies pallidum. Though it`s a sexually transmitted disease it can also spread from an infected mother to her newborn causing congenital syphilis.SymptomsSigns and symptoms of syphilis vary depending on which of the four stages it presents in 1. Primary: A chancre (painless ulceration) appears within 3-90 days after initial exposure. 2. Secondary: It occurs approximately 4 to 10 weeks after the primary infection. An infected person at this stage can have a symmetrical reddish-pink non-itchy rash on the trunk and extremities including the palms and soles or form condyloma latum (flat, broad, whitish, wart-like lesions). Other symptoms include malaise, weight and hair loss, fever, sore throat, and headache. Rare symptoms include periostitis, hepatitis, kidney disease, uveitis, arthritis, optic neuritis, and interstitial keratitis. 3. Latent: it shows little or no symptoms 4. Tertiary: It occurs approximately 3 to 15 years after the initial infection and may be divided into three: late neurosyphilis, cardiovascular syphilis and gummatous syphilis. Blood tests or direct visualization using microscopy can be used to diagnose syphilis. For early infections a single dose of intramuscular penicillin G can be very much effective. Doxycycline and tetracycline can also be used as an alternative choice but is not recommended for pregnant women. Ceftriaxone can also be an effective treatment.For later stage of infection or neurosyphilis heavy doses of intravenous penicillin is given for a minimum of 10 days. In case the infected person is allergic, ceftriaxone may be used. Intramuscular penicillin G once weekly for three weeks can also be used in later stages. Other late presentations may be treated with. Doxycycline or tetracycline may be used for a longer duration in case a person is allergic. FungalTinea cruris Tinea cruris is a dermatophyte fungal infection of the groin region which may be sexually transmitted. Also called jock itch, crotch itch, eczema marginatum, gym itch, crotch rot and ringworm of the groin is casused by a fungus called Trichophyton rubrum.SymptomsIt causes itching or a burning sensation in the groin area, thigh skin folds, or anus. Affected areas may appear red, tan or brown, with flaking, or cracking skin and the borders may exhibit tiny pimples or even pustules. The rashes usually advance down the thigh and can extend back to the perineum and perianal areas.Treatment It is usually treated with antifungal drugs applied topically. Usually creams containing terbinafine, econazole nitrate, tolnaftate, miconazole, Ciclopirox, naftifine, oxiconazole or clotrimazole are used.In case of itching glucocorticoid steroids may be combined with the anti-fungal drug to help prevent further irritation. In order to avoid a fungal infection it`s best advised to wear loss inner wears and sleepwears, exposing the area to wind and sun and thoroughly cleaning the area with water and soap. Candidiasis (yeast infection) Candidiasis or thrush is a fungal infection which is also referred to as a yeast infection, candidosis, moniliasis, and oidiomycosis. Candidiasis includes infections ranging from superficial, such as oral thrush and vaginitis, to systemic and potentially life-threatening diseases. Type of Candidiasisa) Oral candidiasis (Thrush)b) Perlèche (Angular cheilitis)c) Candididd) Antibiotic candidiasis (Iatrogenic candidiasis)e) Candidal vulvovaginitisf) Candidal intertrigog) Diaper candidiasish) Candidal paronychiai) Erosio interdigitalis blastomyceticaj) Congenital cutaneous candidiasisk) Perianal candidiasisl) Chronic mucocutaneous candidiasism) Systemic candidiasisSymptomsCandidiasis symptoms vary depending on the area affected. Infection of the vagina or vulva can cause severe itching, burning, soreness, and a whitish or whitish-gray cottage cheese-like discharge. Infection of the male genitalia includes red patchy sores near the head of the penis or on the foreskin, severe itching, or a burning sensation. Microscopic examination or culturing is used to diagnosis Candidiasis.
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