Sexually Transmitted Diseases (STDs)

Sexually transmitted diseases (STDs)

These are infections transmitted through sexual contact during sexual intercourse. STDs are also known as venereal diseases. They include:

1. Syphilis

1. Cause: Treponema pallidum (bacterium).
2. Symptoms:
   • Primary stage: Painless sores or ulcers (chancre) at the site of infection (genitals, mouth, anus).
   • Secondary stage: Skin rashes, swollen lymph nodes, sore throat, and fever.
   • Latent stage: No symptoms, but bacteria remain in the body.
   • Tertiary stage: Damage to organs such as the heart, brain, and nerves, potentially leading to death.
3. Mode of Transmission: Direct contact with syphilitic sores during sexual contact or from mother to child.
4. Control and Treatment: Treated with antibiotics (usually penicillin). Early treatment is vital for full recovery.

2. Genital herpes

1. Cause: Herpes simplex virus (HSV), commonly HSV-2, but also HSV-1.
2. Symptoms: Painful blisters or sores around the genital area, rectum, or mouth. Itching, burning, and flu-like symptoms during outbreaks.
3. Mode of Transmission: Skin-to-skin contact during sexual activity, even when no visible sores are present.
4. Control and Treatment: No cure, but antiviral medications like acyclovir can reduce symptoms, prevent outbreaks, and reduce transmission.

3. Chlamydia

1. Cause: Chlamydia trachomatis (bacterium).
2. Symptoms:
   • Often asymptomatic, especially in women.
   • In men: Burning sensation during urination, penile discharge.
   • In women: Abnormal vaginal discharge, pain during intercourse, pelvic pain.
3. Mode of Transmission: Sexual contact with an infected person (vaginal, anal, or oral sex), and from mother to child during childbirth.
4. Control and Treatment: Treated with antibiotics (e.g., azithromycin or doxycycline). Regular screenings and safe sexual practices can help prevent transmission.

4. Hepatitis B

1. Cause: Hepatitis B virus (HBV).
2. Symptoms: Jaundice, fatigue, abdominal pain, dark urine, joint pain. Chronic infection can lead to liver damage and cancer.
3. Mode of Transmission: Blood, semen, vaginal fluids, from mother to child during childbirth. Spread via unprotected sex, sharing needles, or exposure to contaminated blood.
4. Control and Treatment: No cure for chronic hepatitis B, but antiviral medications help manage the infection. A vaccine is available for prevention.

5. Gonorrhoea

1. Cause: Neisseria gonorrhoeae (bacterium).
2. Symptoms: Painful urination, abnormal discharge, pelvic pain, and abnormal bleeding in women. Can infect the rectum, throat, or eyes.
3. Mode of Transmission: Sexual contact (vaginal, anal, or oral). Can be passed from mother to child during childbirth.
4. Control and Treatment: Treated with antibiotics (commonly ceftriaxone combined with azithromycin). Regular testing and condom use are essential for prevention.

6. Trichomoniasis

1. Cause: Trichomonas vaginalis (protozoan parasite).
2. Symptoms:
   • In women: Itching, redness, abnormal discharge, and discomfort during urination or intercourse.
   • In men: Often asymptomatic but can cause irritation, discharge, and painful urination.
3. Mode of Transmission: Sexual contact.
4. Control and Treatment: Treated with antibiotics (e.g., metronidazole or tinidazole). Regular testing and using condoms are essential for prevention.

7. Candidiasis (yeast infection)

1. Cause: Overgrowth of the fungus Candida albicans.
2. Symptoms: Itching, burning, abnormal thick white discharge, painful urination or intercourse.
3. Mode of Transmission: Though not always sexually transmitted, it can be triggered or transmitted through sexual activity.
4. Control and Treatment: Treated with antifungal medications, such as clotrimazole or fluconazole. Prevention includes avoiding excessive antibiotic use, wearing breathable clothing, and maintaining hygiene.

8. AIDS (Acquired Immunodeficiency Syndrome)

1. Cause: HIV virus.
2. Symptoms: Flu-like symptoms initially, followed by a weakened immune system, making the person susceptible to infections and cancers.
3. Mode of Transmission: Contact with blood, semen, vaginal fluids, or breast milk from an infected person. It spreads through unprotected sex, sharing needles, and from mother to child during pregnancy, childbirth, or breastfeeding.
4. Control and Treatment: No cure, but HIV can be managed with antiretroviral therapy (ART), which reduces the viral load. Using condoms and pre-exposure prophylaxis (PrEP) reduces the risk of transmission.

9. Chancroid

1. Cause: Haemophilus ducreyi (bacterium).
2. Symptoms: Painful sores or ulcers on the genitals, swollen and painful lymph nodes, especially in the groin.
3. Mode of Transmission: Direct contact with sores during sexual activity.
4. Control and Treatment: Treated with antibiotics like azithromycin or ceftriaxone. Proper treatment and avoiding sexual contact during outbreaks are essential for prevention.

10. Granuloma inguinale (donovanosis)

1. Cause: Klebsiella granulomatis (bacterium).
2. Symptoms: Painless, progressive ulcers or lumps on the genitals, which may bleed when touched.
3. Mode of Transmission: Sexual contact.
4. Control and Treatment: Treated with antibiotics, often doxycycline or azithromycin. Safe sexual practices can prevent transmission.

Secondary effects of sexually transmitted diseases

STDs can lead to severe complications if left untreated, including:

1. Infertility/Sterility: Can result from untreated infections like chlamydia or gonorrhea.
2. Pelvic Inflammatory Disease (PID): Can cause chronic pain and infertility, often caused by untreated STDs.
3. Ectopic Pregnancy: A life-threatening condition where the pregnancy occurs outside the uterus.
4. Sepsis: Infection spreading throughout the body, which can lead to death.
5. Cervical Cancer: Often associated with certain strains of the human papillomavirus (HPV).
6. Premature Birth, Abortion, or Stillbirth: STDs can affect pregnancy outcomes.
7. Blindness of the Fetus: Can occur due to untreated infections like syphilis.

Prevention and early treatment are key to minimizing the impact of STDs.