Rare diseases · Sign or symptom
Eunuchoid habitus
HP:0003782
What it means
A body habitus that is tall, slim and underweight, with long legs and long arms (i.e., arm span exceeds height by 5 cm or more).
Rare diseases that can present with this8
Very common80–99%
7- 49,XXXYY syndrome
- 49,XYYYY syndrome
- Aromatase deficiency
- Intellectual disability-dysmorphism-hypogonadism-diabetes mellitus syndrome
- Male hypergonadotropic hypogonadism-intellectual disability-skeletal anomalies syndrome
- Marfanoid habitus-autosomal recessive intellectual disability syndrome
- Normosmic congenital hypogonadotropic hypogonadism
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
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.