Catatonia in Schizophrenia

What is catatonia in schizophrenia?

Catatonia is a syndrome in which the connection between mind and movement breaks down. A person may become unresponsive and physically frozen, hold unusual postures for long periods, stop speaking, or swing to the opposite extreme with purposeless, agitated activity. When these features occur in someone with schizophrenia, clinicians describe it as schizophrenia with catatonia.

It can be alarming to witness, because the person may look absent or unreachable. But catatonia is a recognized medical syndrome with well-established treatments, and many people recover fully once it is identified and treated.

For decades, this presentation was labeled catatonic schizophrenia and treated as one of the classic subtypes. That framing has changed, which matters both for how it is diagnosed and for the fact that catatonia is now looked for far beyond schizophrenia.

Catatonia is now a specifier, not a subtype

When the DSM-5 was published in 2013, it removed the schizophrenia subtypes, including the catatonic subtype. Catatonia was reclassified as a specifier, a descriptive add-on that can be attached to many different diagnoses when catatonic features are present.

In the DSM-5 and DSM-5-TR, catatonia can be specified alongside schizophrenia and other psychotic disorders, but also bipolar disorder, major depressive disorder, schizoaffective disorder, brief psychotic disorder, and substance-induced psychotic disorder. There are also categories for catatonia due to another medical condition and unspecified catatonia. In other words, catatonia is a cross-cutting syndrome, not something unique to schizophrenia.

This shift has real clinical value. It reminds clinicians to screen for catatonia in mood disorders and medical illness too, where it is easy to miss, and it encourages treating the catatonia directly rather than assuming it is just part of the underlying psychosis.

It also changes the language you will hear. Instead of a fixed label like catatonic schizophrenia, a current chart might read schizophrenia with catatonia, bipolar disorder with catatonic features, or catatonia due to another medical condition. The wording tells you two things at once: what the underlying problem is, and that catatonic features are currently present and need their own attention.

Signs and symptoms of catatonia

The DSM-5 defines catatonia by the presence of three or more characteristic features. These involve abnormal movement, speech, and responsiveness.

• Stupor: little or no movement and no active relation to the environment
• Catalepsy: passively holding a posture against gravity
• Waxy flexibility: mild, even resistance as a caregiver repositions the limbs, which then stay put
• Mutism: little or no verbal response
• Negativism: resisting or not responding to instructions or external stimuli
• Posturing: spontaneously holding a fixed posture for a long time
• Mannerisms: odd, exaggerated versions of ordinary actions
• Stereotypy: repetitive, non-goal-directed movements
• Agitation not explained by an external cause
• Grimacing
• Echolalia: repeating another person's words
• Echopraxia: mimicking another person's movements

Stuporous vs. excited catatonia

Catatonia is often described in two broad presentations, and a person can shift between them. Recognizing both matters because the withdrawn form is easy to mistake for depression or sedation.

In the stuporous, or withdrawn, form, the person becomes immobile, mute, and unresponsive, may stare, and may hold postures. In the excited form, the person is intensely agitated, restless, and may echo others' words or movements. Both are catatonia, and both respond to the same core treatments.

The withdrawn form is the one most often missed. On a busy ward or in an emergency room, a person who is silent and still can be assumed to be depressed, sedated, or simply uncooperative, and the specific syndrome of catatonia goes unrecognized. That is a costly miss, because catatonia has a fast, effective treatment that ordinary depression care does not provide. Screening tools exist precisely so that clinicians actively look for it rather than waiting for the more obvious excited presentation.

Malignant catatonia: a medical emergency

One form of catatonia is a life-threatening emergency and deserves special attention. Malignant catatonia adds fever, unstable blood pressure and heart rate, and dangerous muscle rigidity to the catatonic picture, and it can be fatal without rapid treatment.

Malignant catatonia overlaps closely with neuroleptic malignant syndrome, a severe reaction to antipsychotic medication, which is one reason antipsychotics must be used cautiously here. If someone with catatonia develops a high fever, a racing or unstable heart rate, or severe rigidity, treat it as an emergency and seek immediate medical care.

What causes catatonia

Catatonia is thought to involve disruptions in brain circuits and neurotransmitters, particularly reduced activity in the GABA system, which helps explain why medications that boost GABA can reverse it so effectively.

It can be triggered by psychiatric conditions such as schizophrenia and mood disorders, and also by medical causes including infections, autoimmune conditions, metabolic problems, and certain medications or their withdrawal. Because a medical cause can be behind it, a workup to look for underlying illness is an important part of care.

One cause has drawn particular attention in recent years: autoimmune encephalitis, especially the anti-NMDA receptor form, which can produce catatonia along with psychiatric symptoms and is treatable when caught. This is part of why a new or unexplained episode of catatonia is not brushed off as purely psychiatric; clinicians look for a physical driver that might respond to specific medical treatment.

How catatonia is diagnosed

Diagnosis is clinical, based on observing the characteristic features, often using a standardized tool such as the Bush-Francis Catatonia Rating Scale to score symptoms and track change.

A distinctive diagnostic step is the lorazepam challenge test. A clinician gives a small dose of the benzodiazepine lorazepam and watches for improvement over the next several minutes to hours. A clear response both supports the diagnosis and points to the treatment. Clinicians also order tests to rule out medical causes.

Treatment

The encouraging news is that catatonia frequently responds well to treatment, sometimes dramatically. Two treatments are central, and both are decided and delivered by medical clinicians.

Benzodiazepines, especially lorazepam, are the first-line treatment and can produce rapid improvement. When catatonia is severe, does not respond to medication, or is malignant, electroconvulsive therapy (ECT) is highly effective and can be lifesaving. Notably, antipsychotic medications, which are the mainstay of treating schizophrenia itself, are generally used with caution or avoided during acute catatonia, because they can worsen it and raise the risk of neuroleptic malignant syndrome. Once the catatonia resolves, the underlying condition is treated on its own terms. Beyond the acute episode, therapy and psychosocial support help with recovery and with the schizophrenia overall.

Alongside medical treatment, supportive nursing care matters more than it might seem. A person in catatonic stupor may not eat, drink, or move enough on their own, which raises the risk of dehydration, blood clots, pressure injuries, and infections. Attentive care to prevent these complications is part of why timely, hospital-based treatment is so important. With prompt recognition and treatment, the outlook for a catatonic episode is often good, and many people return to their previous level of functioning.