Waxy flexibility is a characteristic sign of:: (A) Excitatory catatonia, (B) Stuporous catatonia, (C) Obsessive compulsive disorder, (D) Paranoid schizophrenia
Answer is B. Waxy flexibility is a sign of catatonia. In waxy flexibility, when examiner makes a passive movement on patient, there is a feeling of plastic resistance which resembles bending of a soft wax candle. It is seen in stupors catatonia more commonly. In excitatory catatonia, instead of stupor, patient shows increased levels of goal less activity.