Psychogenic amnesia: Symptoms, Risk Factors, and Real-Life Effects
Psychogenic amnesia is memory loss that cannot be explained by ordinary forgetfulness and is most often linked to severe stress, trauma, or overwhelming emotional...
Psychasthenia Symptoms, Signs, Causes, and Modern Diagnostic Context
Psychasthenia is an older psychiatric term used to describe a pattern of persistent anxiety, obsessive doubt, compulsive tendencies, phobias, rumination, fatigue, and a reduced...
Pseudodementia Symptoms and How They Differ From Dementia and Delirium
Pseudodementia is an older clinical term for cognitive symptoms that look like dementia but are mainly driven by another psychiatric or medical condition, most...
Pseudocyesis Symptoms and Signs: How False Pregnancy Can Affect the Body
Pseudocyesis, often called false pregnancy or phantom pregnancy, is a rare condition in which a person believes they are pregnant and also develops pregnancy-like...
Pseudobulbar Affect Symptoms, Signs, Causes, and Neurological Risk Factors
Pseudobulbar affect is a neurological condition in which a person has sudden, involuntary episodes of laughing, crying, or sometimes other emotional expression that feel...
Prodromal psychosis Early Warning Signs and Clinical Risk
Prodromal psychosis refers to early changes that may appear before a full psychotic episode, especially when unusual thoughts, perceptions, suspicion, or disorganized thinking begin...
Prion Disease Signs and Symptoms: Cognitive, Psychiatric, and Neurological Changes
Prion disease is a rare group of brain disorders caused by abnormal folding of prion proteins. These diseases are best known for Creutzfeldt-Jakob disease,...
Primary nocturnal enuresis: Signs, Risk Factors, and Diagnostic Context
Primary nocturnal enuresis means repeated bedwetting during sleep in a child who is old enough that nighttime dryness would usually be expected and who...
Presenile dementia: Early Signs, Diagnosis Context, and Complications
Presenile dementia is an older term for dementia that begins before the usual older-adult age range, most often before age 65. Clinicians now more...
Premenstrual Dysphoric Disorder Guide to Symptoms, Risk Factors, and Diagnosis
Premenstrual dysphoric disorder, often shortened to PMDD, is a cyclical mood disorder tied to the menstrual cycle. It is not simply “bad PMS” or...
Post-schizophrenic depression: Overview, Symptoms, Signs, Causes, and Risks
Post-schizophrenic depression is a depressive episode that appears after a period of schizophrenia or psychosis has improved, while some lower-level symptoms of schizophrenia may...
Post-psychotic depression: Overview, warning signs, risk factors, and complications
Post-psychotic depression is a depressive state that appears after the most intense phase of a psychotic episode has eased. It is most often discussed...
Postpartum psychosis Causes, Risk Factors, and Complications Explained
Postpartum psychosis is a rare but serious mental health condition that can occur after childbirth. It involves a break from reality, which may include...
Postpartum Depression: Key Signs, Risk Factors, and Safety Concerns
Postpartum depression is a depressive condition that can occur after childbirth and can affect mood, thinking, energy, bonding, sleep, appetite, and day-to-day functioning. It...
Post Traumatic Stress Disorder Symptoms, Signs, Causes, and Risk Factors
Post-traumatic stress disorder, usually shortened to PTSD, is a mental health condition that can develop after exposure to actual or threatened death, serious injury,...
Pica Disorder: Signs, Causes, Diagnosis Context, and Complications
Pica is a feeding and eating disorder in which a person repeatedly eats or craves substances that are not typically considered food and do...
Pervasive developmental disorder: Overview, Core Symptoms, and Risk Factors
Pervasive developmental disorder is an older diagnostic term that was once used for a group of childhood-onset developmental conditions involving social communication differences, restricted...
Personality disorder Explained: Patterns, Risks, and Complications
Personality disorder is a mental health condition in which long-standing patterns of thinking, feeling, relating, and behaving cause significant problems in daily life. These...
Persistent Depressive Disorder Symptoms, Signs, Causes, and Risk Factors
Persistent depressive disorder is a long-lasting form of depression in which low mood, hopelessness, low energy, poor self-esteem, and related symptoms persist for years....
Persistent complex bereavement disorder Overview: Symptoms, Risk Factors, and Effects
Persistent complex bereavement disorder is a form of unusually persistent, impairing grief after the death of someone close. The term is closely related to...