Postorgasmic illness syndrome

Postorgasmic illness syndrome (POIS) is a rare condition in which individuals, predominantly males, develop a cluster of debilitating symptoms shortly after ejaculation, whether through sexual intercourse, masturbation, or spontaneous nocturnal emission. Symptoms typically begin within seconds to hours following orgasm and can persist for two to seven days. The condition was first described in 2002 and is classified under Orphanet rare diseases (ORPHA:279947) and coded as F52.3 under ICD-10. POIS affects multiple body systems. Key clinical features include severe fatigue, cognitive difficulties (often described as 'brain fog'), irritability, flu-like symptoms such as nasal congestion, sore throat, and muscle aches, as well as mood disturbances including depressive feelings and anxiety. Some patients also report difficulty with concentration, memory impairment, and general malaise. The severity and combination of symptoms can vary considerably between individuals but are characteristically reproducible with each orgasmic event. The exact pathophysiology of POIS remains poorly understood. Proposed mechanisms include an autoimmune or allergic reaction to components of one's own seminal fluid, dysregulation of cytokines, or neurochemical imbalances. Some preliminary research has suggested that hyposensitization therapy (subcutaneous autologous semen injections) may provide partial relief in select patients. Other treatment approaches that have been explored include nonsteroidal anti-inflammatory drugs, antihistamines, selective serotonin reuptake inhibitors, and benzodiazepines, though evidence for these remains largely anecdotal or based on small case series. There is currently no established standard treatment, and management is primarily supportive and individualized.

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