Rare diseases · Sign or symptom
Abnormal diminished volition
Diminished motivation
HP:0000745
What it means
A reduction in willful and motivated goal-directed behavior that is considered the determinant of behavior and adaptation that allows individuals to get started, be energized to perform a sustained and directed action.
Rare diseases that can present with this2
The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.
Part of the broader category
Also called: Diminished energy · Diminished volitional state · Lack of initiative · Lack of motivation · Lacking in initiative · Lacks initiative
Tracking symptoms like this for someone? Eleplan keeps symptoms, diagnoses, medications and every specialist in one plan.
Start free with EleplanThis page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.