Gonorrhea Gonorrhea is a common sexually transmitted infection (STI) caused by the Gram-negative diplococcus Neisseria gonorrhoeae. It primarily infects mucous membranes of the urethra, cervix, rectum, pharynx, and conjunctiva, leading to various clinical manifestations depending on the site of infection. In females, it can remain asymptomatic, allowing the disease to progress silently, whereas in males, … Read more
Syphilis Syphilis is a chronic systemic infectious disease caused by the spirochete bacterium Treponema pallidum subspecies pallidum. It is primarily transmitted through sexual contact, but can also be congenitally acquired. Known for its multistage progression, if left untreated, syphilis may lead to serious cardiovascular, neurological, and dermatological complications over time. Once on the decline due … Read more
AIDS Acquired Immunodeficiency Syndrome (AIDS) represents the most advanced stage of infection caused by the Human Immunodeficiency Virus (HIV). It is a chronic, life-threatening condition characterized by a profound weakening of the immune system, which renders the body highly susceptible to opportunistic infections, malignancies, and neurological complications. Since its emergence in the early 1980s, AIDS … Read more
Urinary Tract Infections Urinary Tract Infections (UTIs) are one of the most common bacterial infections encountered globally, affecting individuals across all age groups, with a pronounced prevalence among women. A UTI can involve any part of the urinary system, which includes the kidneys, ureters, bladder, and urethra. While generally curable with timely antibiotic therapy, untreated … Read more
Tuberculosis Tuberculosis (TB) is a chronic infectious disease caused by the Mycobacterium tuberculosis complex, primarily affecting the lungs but capable of involving almost any organ system in the body. TB has been one of humanity’s deadliest diseases for centuries and continues to remain a leading cause of morbidity and mortality worldwide, especially in low- and … Read more
Leprosy Leprosy, also known as Hansen’s disease, is a chronic infectious disease that primarily affects the skin, peripheral nerves, mucosa of the upper respiratory tract, and eyes. Caused by the bacterium Mycobacterium leprae, it is one of the oldest recorded diseases in human history and carries a significant social stigma, largely due to disfigurement and … Read more
Typhoid Fever Typhoid fever, also known simply as typhoid, is a systemic infectious disease caused by the bacterium Salmonella enterica serovar Typhi (S. Typhi). It is a life-threatening illness primarily affecting the gastrointestinal tract and can lead to severe complications if not diagnosed and treated in time. The disease remains a major public health challenge … Read more
Meningitis Meningitis represents a potentially life-threatening clinical syndrome characterized by inflammation of the protective membranes—known as the meninges—surrounding the brain and spinal cord. It is a condition of considerable global health concern, known to affect individuals of all age groups, with neonates, children, and immunocompromised individuals being the most susceptible. The disease may progress rapidly, … Read more
Cancer is a group of diseases characterized by uncontrolled cell growth, invasion, and metastasis. It arises due to genetic and environmental factors that alter normal cellular functions. Understanding the classification, etiology, and pathogenesis of cancer is essential for developing effective diagnostic, therapeutic, and preventive strategies. 1. Classification of Cancer Cancer can be classified based on … Read more
Gout is a form of inflammatory arthritis characterized by the accumulation of uric acid crystals in the joints, causing sudden and severe pain, redness, swelling, and tenderness. It is often referred to as “the disease of kings” due to its historical association with indulgent lifestyles and the consumption of rich foods and alcohol. Epidemiology of … Read more
