Undiagnosed schizophrenia often looks like a significant decline in functioning, marked by social withdrawal, lack of motivation, poor hygiene, unusual beliefs (delusions), and sensory experiences like hearing voices (hallucinations). Individuals might seem detached, unmotivated, have disorganized speech, neglect self-care, show reduced emotion, or develop paranoid fears, impacting their ability to work, study, or maintain relationships. Early signs can be subtle, like increased anxiety or odd thoughts, progressing to more obvious symptoms.
Signs of Schizophrenia
One of the most common symptoms in cases of late-onset schizophrenia is hallucinations. Sufferers may have sensory hallucinations, such as phantom smells. They may also have visual or auditory hallucinations, such as hearing voices or seeing individuals who are not present.
Left untreated, schizophrenia can lead to severe problems that affect every area of life. Complications that schizophrenia may cause or be related to include: Suicide, suicide attempts and thoughts of suicide. Anxiety disorders and obsessive-compulsive disorder, also known as OCD.
It's less common, but sometimes, schizophrenia onset can take place later in life. Experts consider late-onset schizophrenia to mean a diagnosis between the ages of 40 and 60, while a diagnosis beyond age 60 is considered very late-onset schizophrenia-like psychosis.
Positive and negative symptoms
Schizophrenia is a mental illness that causes psychosis, but schizophrenia also has other symptoms. And it isn't the only cause of psychosis. In some cases, other mental illnesses cause psychosis, including depression, bipolar disorder, dementia and borderline personality disorder.
Research suggests a combination of physical, genetic, psychological and environmental factors can make a person more likely to develop the condition. Some people may be prone to schizophrenia, and a stressful or emotional life event might trigger a psychotic episode.
The "25 rule" (or "rule of quarters") in schizophrenia suggests that outcomes fall into four roughly equal groups: 25% recover fully, 25% improve significantly with some ongoing support, 25% improve somewhat but need considerable help, and 25% have a poor outcome with chronic illness or suicide risk, highlighting the varied nature of schizophrenia's long-term course, though some sources use a "rule of thirds" with similar proportions for different outcomes.
While many people with schizophrenia receive a diagnosis and the appropriate treatment, as many as 33% of all cases may go undiagnosed and untreated, sometimes for years.
One of the early signs of schizophrenia is social withdrawal. Individuals may begin to distance themselves from friends and family, showing a lack of interest in social activities they once enjoyed. They might become reclusive, preferring to spend time alone.
Among these, the 5 A's of Schizophrenia serve as essential markers for identifying and assessing the disorder. These include Alogia, Avolition, Anhedonia, Affective Flattening, and Asociality. Each of these symptoms represents a diminished or absent function that is critical for daily living and social interaction.
Schizophrenia, in some cases, can be dormant and not surface until triggered by something. The triggers may be emotional, such as trauma resurfacing, or circumstantial, such as a chronic illness or an autoimmune disease that appears suddenly.
Bipolar disorder.
People with bipolar disorder often have periods of being “up” or “on” when they're extremely energized or happy, then fall into periods of deep depression. Some people with severe bipolar disorder have delusions or hallucinations. That's why they may be misdiagnosed with schizophrenia.
You could be diagnosed with schizophrenia if you experience some of the following symptoms:
Stress can worsen symptoms. Learn ways to keep it under control. Seek help right away. Call your healthcare provider if you notice a change or increase in symptoms.
Speech may be mildly disorganized or completely incoherent and incomprehensible. Disorganized (bizarre) behavior may take the form of childlike silliness, agitation, or inappropriate appearance, hygiene, or conduct.
There's no single test for schizophrenia and the condition is usually diagnosed after assessment by a specialist in mental health. If you're concerned you may be developing symptoms of schizophrenia, see a GP as soon as possible. The earlier schizophrenia is treated, the better.
High-functioning schizophrenia describes people who live with core symptoms like hallucinations, delusions, or disorganized thinking, yet still manage to keep up with work, relationships, and daily responsibilities.
Antipsychotics. Antipsychotics are usually recommended as the initial treatment for the symptoms of an acute schizophrenic episode. They work by blocking the effect of the chemical dopamine, or other chemicals on the brain.
Age-Of-Onset for Schizophrenia
Schizophrenia is typically diagnosed in the late teens years to early thirties, and tends to emerge earlier in males (late adolescence – early twenties) than females (early twenties – early thirties).
Disorganized or catatonic behavior: Moving or acting in ways others might not expect (like laughing excessively, making repetitive motions or staying very still) Negative symptoms: Reduced ability to function (like showing little emotion, speaking in a flat tone or losing motivation to socialize or enjoy activities)
Signs and Symptoms of Schizophrenia
Common medicines that are available as shots include:
“What this finding suggests is that psychosis is not a condition like dementia, where brain changes are degenerative, without any evidence of a reversal,” Palaniyappan said. “There are reversals already happening in the brain, to a small extent, by the time a person knocks at a doctor's door with psychosis.