
STI – Sexually Transmitted Infection
A Sexually Transmitted Infection (STI) is a hidden intruder passed through intimate contact, often entering the body silently, spreading unnoticed, and causing harm long before symptoms appear—making awareness, testing, and prevention the strongest lines of defence.
Sexually Transmitted Infections (STIs): A Clinical Overview
What are Sexually Transmitted Infections (STIs)?
Sexually Transmitted Infections (STIs) are infectious diseases caused by bacteria, viruses, parasites, or fungi that are primarily transmitted through sexual contact, including vaginal, anal, and oral intercourse. Many STIs remain asymptomatic, contributing to delayed diagnosis and increased transmission.
What Causes STIs?
STIs are caused by different classes of pathogens:
1. Bacterial STIs
• Chlamydia trachomatis (Chlamydia)
• Neisseria gonorrhoeae (Gonorrhea)
• Treponema pallidum (Syphilis)
2. Viral STIs
• Human Immunodeficiency Virus (HIV)
• Human Papillomavirus (HPV)
• Herpes Simplex Virus (HSV-1, HSV-2)
• Hepatitis B Virus (HBV)
3. Parasitic STIs
• Trichomonas vaginalis (Trichomoniasis)
• Pubic lice (Phthirus pubis)
4. Fungal Infections (occasionally sexually transmitted)
• Candida albicans (not always classified as STI? Who is affected by sexually transmitted infections (STIs)?
Most STI’s affect both men and women, whereas in many cases the health problems they cause can be more fatal for women. If an STI is passed to a fetus during pregnancy or childbirth, it can cause life-threatening health problems.
How Do STIs Spread?
• Unprotected sexual intercourse
• Multiple sexual partners
• Blood and blood products
• Mother-to-child transmission (during pregnancy, delivery, or breastfeeding)
• Sharing contaminated needles
What Are the Common Symptoms of STIs?
Symptoms vary depending on the organism and stage of infection:
General Symptoms
- Abnormal genital discharge
• Genital ulcers or sores
• Burning sensation during urination
• Genital itching or irritation
• Lower abdominal or pelvic pain
• Pain during intercourse
• Abnormal vaginal bleeding
• Painful or frequent urination (peeing)
• Abnormal vaginal odor
Important: Many STIs remain asymptomatic, especially in women.
What Are the Complications (Pros and Cons)?
Pros (If Diagnosed Early)
• Most bacterial STIs are completely curable
• Early treatment prevents complications
• Transmission can be effectively controlled
• Improved reproductive and sexual health outcomes
Cons (If Left Untreated)
• Pelvic Inflammatory Disease (PID)
• Infertility in both sexes
• Ectopic pregnancy
• Chronic pelvic pain
• Increased risk of HIV acquisition
• Neonatal infections and congenital abnormalities
• Certain cancers (e.g., cervical cancer with HPV)
How Are STIs Medically Diagnosed?
Diagnosis depends on clinical suspicion and laboratory confirmation:
Common Diagnostic Tests
• Blood tests: HIV, Syphilis, Hepatitis B
• Urine tests: Chlamydia, Gonorrhea
• Swab tests (cervical, urethral, vaginal): Bacterial and viral STIs
• NAAT (Nucleic Acid Amplification Tests) – gold standard for many STIs
• Pap smear & HPV testing
• Rapid diagnostic tests (RDTs) for screening
HIV & AIDS: Understanding the Silent Journey of a Virus
Awareness
HIV does not announce its arrival with pain or fear—it enters quietly, weakens the body patiently, and reveals its damage only when immunity begins to fail. Awareness is not just knowledge; it is protection, compassion, and the first step toward prevention.
Major Modes of Transmission
• Unprotected vaginal, anal, or oral sex with an infected person.
• Sharing contaminated needles or syringes
• Transfusion of infected blood or blood products
• Mother-to-child transmission (during pregnancy, delivery, or breastfeeding)
• Occupational exposure (needle-stick injuries in healthcare workers)
HIV does NOT spread through casual contact, hugging, sharing food, or mosquito bites.
Important: Not all HIV-positive individuals develop AIDS—early diagnosis and antiretroviral therapy (ART) can prevent progression.
Occurrence
HIV affects individuals of all ages and genders.
Higher risk in:
- People with multiple sexual partners
- Injection drug users
- Individuals with untreated STIs
- HIV remains a major global public health challenge, especially in low- and middle-income countries.
How Can STIs Be Prevented?
• Consistent and correct use of condoms
• Regular STI screening
• Limiting number of sexual partners
• Vaccination (HPV, Hepatitis B)
• Avoiding sharing needles
• Comprehensive sex education
• Having you and your partner tested for STIs before having sex.
If you or your partner is allergic to latex, you can use polyurethane condoms.
Risk factors – Several behaviors can increase your risk:
• Having anal, vaginal, or oral sex without a condom
• Having multiple sex partners
• Having anonymous sex partners
• Having sex while under the influence of drugs or alcohol can lower inhibitions and result in greater sexual risk-taking.
Foods to Avoid During STI/STD
• Alcohol (weakens immunity and interacts with medicines)
• Excess sugar (feeds inflammation)
• Processed and junk foods
• Very spicy or oily foods (can worsen genital irritation)
• Caffeinated drinks (in excess)
Why Is Awareness of STIs Important?
STIs represent a significant global public health burden due to:
• High prevalence
• Social stigma and underreporting
• Asymptomatic nature
• Long-term health consequences
Awareness promotes early testing, timely treatment, and prevention of transmission, ultimately reducing morbidity and mortality.
Key Medical Advice
• Always follow doctor-prescribed treatment
• Do not rely on diet or home remedies alone
• Combine medication + nutrition + safe sexual practices
Conclusion of STI (Sexually Transmitted Infections)
Sexually Transmitted Infections remain a major public health concern due to their high prevalence, asymptomatic nature, and potential for serious long-term complications.
Early diagnosis, appropriate medical treatment, and partner management are essential to prevent disease progression and transmission. Comprehensive awareness, safe sexual
practices, routine screening, and timely healthcare access play a crucial role in controlling STIs. An integrated approach combining medical care, education, and prevention strategies is key to reducing the burden of STIs and protecting individual as well as community health.










