Traits

Traits linked to IL17RD

interleukin 17 receptor D

The Human Phenotype Ontology links 50 traits to IL17RD, by body system: features seen in people with one of the gene's rare conditions.

IL17RD

Abnormality of the genitourinary system

Trait	How often it is seen
Abnormal erection	Very often (80–99%)
Decreased fertility	Very often (80–99%)
Decreased testicular size	Very often (80–99%)
Short penis	Very often (80–99%)
Underdeveloped penis	Very often (80–99%)
Undescended testes	Often (30–79%)
Abnormal morphology of female internal genitalia	Sometimes (5–29%)
Absent kidney	Sometimes (5–29%)
Dyspareunia	Sometimes (5–29%)
Primary amenorrhea	Sometimes (5–29%)

Abnormality of the musculoskeletal system

Trait	How often it is seen
Low solidness and mass of the bones	Often (30–79%)
Abnormal skeletal development	Sometimes (5–29%)
Delayed bone maturation	Sometimes (5–29%)
Low muscle tone	Sometimes (5–29%)
Muscle weakness	Sometimes (5–29%)
Osteopenia	Sometimes (5–29%)
Osteoporosis	Sometimes (5–29%)
Recurrent fractures	Sometimes (5–29%)

Abnormality of the nervous system

Trait	How often it is seen
Abnormal gait	Sometimes (5–29%)
Ataxia	Sometimes (5–29%)
Difficulty articulating speech	Sometimes (5–29%)
Epilepsy	Sometimes (5–29%)
Hand mirror movements	Sometimes (5–29%)
Leg paralysis	Sometimes (5–29%)
Tremor	Sometimes (5–29%)

Abnormality of the endocrine system

Trait	How often it is seen
Absence of pubertal development	Very often (80–99%)
Anterior hypopituitarism	Very often (80–99%)
Delayed puberty	Very often (80–99%)
Gonadotropin-releasing hormone deficiency	Very often (80–99%)
Hypogonadotropic hypogonadism	Very often (80–99%)
Decreased activity of gonads	Not recorded

Abnormality of head or neck

Trait	How often it is seen
Lost smell	Always
Hyposmia	Very often (80–99%)
Abnormal dentition	Sometimes (5–29%)
Cleft palate	Sometimes (5–29%)
Decreased number of teeth	Sometimes (5–29%)

Abnormality of the eye

Trait	How often it is seen
Abnormal color vision	Sometimes (5–29%)
Drooping upper eyelid	Sometimes (5–29%)
Involuntary, rapid, rhythmic eye movements	Sometimes (5–29%)
Visual impairment	Sometimes (5–29%)

Abnormality of limbs

Trait	How often it is seen
Dropped arches	Sometimes (5–29%)
High-arched foot	Sometimes (5–29%)

Abnormality of the breast

Trait	How often it is seen
Underdeveloped breasts	Often (30–79%)
Enlarged male breast	Sometimes (5–29%)

Abnormality of the ear

Trait	How often it is seen
Hearing impairment	Often (30–79%)
Sensorineural hearing impairment	Sometimes (5–29%)

Abnormality of the cardiovascular system

Trait	How often it is seen
Abnormal cardiovascular system morphology	Sometimes (5–29%)

Abnormality of the integument

Trait	How often it is seen
Ichthyosis	Sometimes (5–29%)

Abnormality of the voice

Trait	How often it is seen
Abnormality of the voice	Often (30–79%)

Growth abnormality

Trait	How often it is seen
Obesity	Sometimes (5–29%)

How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.

Where this comes from

The Human Phenotype Ontology, release 2026-09-01: the traits linked to IL17RD and how often each is seen. Find out more at hpo.jax.org.

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