Health conditions and diseases starting with P. Explore reliable details on symptoms, causes, and treatments to protect your well-being.
Postexposure plague prophylaxis (PEP) is a critical public health intervention aimed at preventing illness in individuals exposed to Yersinia pestis, the bacterium responsible for plague. This zoonotic disease remains a threat in specific regions and is also considered a potential bioterrorism agent. Rapid initiation of antibiotic prophylaxis is essential in preventing progression to severe disease
Posterior synechiae are adhesions between the posterior surface of the iris and the anterior lens capsule. These adhesions typically develop as a consequence of intraocular inflammation, most commonly in the context of anterior uveitis. If not promptly diagnosed and managed, posterior synechiae may lead to complications such as elevated intraocular pressure, angle-closure glaucoma, and permanent
Postencephalitic parkinsonism (PEP) is a rare, neurodegenerative condition resulting from viral encephalitis, most notably encephalitis lethargica. It is characterized by Parkinson-like motor symptoms including bradykinesia, rigidity, tremor, and postural instability. First observed following the global encephalitis lethargica epidemic from 1917 to 1928, this condition primarily affects the extrapyramidal system, with lasting neurological sequelae. Historical Context:
Postcoital contraception, commonly referred to as emergency contraception, encompasses medical interventions used to prevent pregnancy after unprotected intercourse or contraceptive failure. These methods are most effective when administered promptly after sexual activity, ideally within 72 to 120 hours. Emergency contraceptive options include hormonal pills and intrauterine devices (IUDs), each varying in mechanism, efficacy, and indications.
Postabortal hemorrhage refers to excessive bleeding following a spontaneous or induced abortion. As one of the most serious complications of abortion, it demands immediate recognition and prompt intervention. Defined as blood loss exceeding 500 mL or any amount resulting in hemodynamic instability, postabortal hemorrhage can arise from various etiologies including uterine atony, retained products of
Post-transplant cytomegalovirus (CMV) infection is one of the most significant complications following solid organ and hematopoietic stem cell transplantation. This herpesvirus, typically latent in immunocompetent individuals, can reactivate under the immunosuppressive conditions post-transplantation, leading to severe and potentially life-threatening disease. CMV infection contributes to both direct and indirect adverse outcomes, including organ dysfunction, increased risk
Post-operative vaginal cuff infections represent a serious complication following gynecologic surgeries, particularly total hysterectomy. Among the microbial culprits, Peptostreptococcus—an anaerobic Gram-positive coccus—frequently colonizes the female genital tract and may cause deep pelvic infections when introduced to surgical sites. Understanding the etiology, clinical presentation, diagnostic approach, and management of Peptostreptococcus infections following vaginal cuff procedures is
Post-operative nausea and vomiting (PONV) is a frequent complication following anesthesia and surgery, affecting up to 30% of all surgical patients and up to 80% of high-risk individuals. This condition can significantly impact patient comfort, prolong recovery, and increase healthcare costs due to delayed discharge or unplanned hospital admission. A multidisciplinary approach to risk assessment,
Post-operative photophobia refers to abnormal light sensitivity experienced following ocular surgery. While some degree of photophobia may be transient and expected, persistent or severe symptoms warrant clinical investigation. Photophobia can emerge after procedures such as LASIK, cataract surgery, corneal transplants, or vitrectomy, indicating underlying inflammation, nerve hypersensitivity, or surgical complications. Common Causes of Post-Op Photophobia
Post-operative ocular inflammation is a common response following various types of intraocular surgery, including cataract extraction, vitrectomy, and glaucoma procedures. While a mild inflammatory reaction is expected, excessive or prolonged inflammation may signify complications such as infection, tissue reaction, or iatrogenic injury. Timely recognition and management are essential to preserving vision and preventing structural damage.