Health conditions and diseases starting with R. Get comprehensive insights into symptoms, causes, and treatment methods for better health.
Recurrent Clostridioides difficile infection (CDI) presents a growing healthcare challenge worldwide. It is characterized by the reappearance of symptomatic infection within eight weeks following the completion of appropriate antibiotic therapy. Recurrent CDI significantly increases morbidity, healthcare costs, and the risk of further recurrences, necessitating a comprehensive and sustained management approach. Causes and Risk Factors for
Recurrent calcium renal calculi, commonly referred to as recurring kidney stones, are solid deposits predominantly composed of calcium oxalate or calcium phosphate. These stones form within the kidneys and can lead to significant morbidity due to pain, urinary tract obstruction, and potential renal impairment. Managing recurrent cases demands a comprehensive understanding of underlying etiologies, effective
Recurrent aphthous stomatitis (RAS) is a common oral mucosal disorder characterized by recurring, painful ulcers, typically on non-keratinized oral tissues. Though benign and non-contagious, RAS can significantly impair quality of life by affecting eating, speaking, and oral hygiene. It is essential to understand its multifactorial etiology for effective management. Etiology and Risk Factors for Recurrent
Rectal pain refers to discomfort or pain originating from the rectal or anal regions. It can be acute or chronic, sharp or dull, and may vary in intensity. Due to its diverse causes, rectal pain requires thorough evaluation to ensure effective management and prevent serious complications. Common Causes of Rectal Pain Several conditions can result
Rectal gonorrhea is a sexually transmitted infection caused by Neisseria gonorrhoeae, a Gram-negative diplococcus. It primarily affects the rectal mucosa following receptive anal intercourse or, less commonly, autoinoculation from genital infections. Many cases are asymptomatic, allowing for silent transmission and delayed diagnosis, increasing the risk of complications. Causes and Risk Factors of Rectal Gonorrhea Transmission
Rectal chlamydia trachomatis infection is a sexually transmitted infection (STI) caused by the bacterium Chlamydia trachomatis, affecting the rectal mucosa. It often results from receptive anal intercourse but can also occur through autoinoculation. Rectal chlamydia can be asymptomatic or present with significant proctitis symptoms, necessitating prompt diagnosis and treatment to avoid severe complications. Causes and
Recrudescent typhus, also known as Brill-Zinsser disease, is a late relapse of epidemic typhus caused by Rickettsia prowazekii. This condition typically arises years after the initial infection, often when the immune system is compromised. Although less severe than primary epidemic typhus, recrudescent typhus poses serious health risks if not properly identified and treated. Causes and
Raynaud’s phenomenon is a vascular disorder characterized by episodic constriction of small arteries, leading to reduced blood flow to extremities, primarily fingers and toes. Triggered commonly by cold exposure or emotional stress, this condition manifests through distinct color changes in the skin — typically white, blue, and then red as blood flow returns. While not
Rat-bite fever is a bacterial infection that can result from a bite or scratch from a rat or other rodent. The condition is rare, but it can cause severe health complications if left untreated. Although it is not commonly seen, it remains a significant health concern, particularly in regions with high rodent populations. Understanding rat-bite
Bipolar disorder is a mental health condition characterized by extreme mood swings, including episodes of mania and depression. While the disorder is widely recognized, there exists a specific subset known as rapid cycling bipolar disorder. This variant is marked by a higher frequency of mood episodes, leading to more significant challenges in management and treatment.