Trait
Microphallus
Length of penis more than 2 SD below the mean for age accompanied by hypospadias.
Summary
- Body system
- Abnormality of the genitourinary system
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
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Get my Genome Test16 genes linked to Microphallus
Changes in these genes cause rare conditions in which Microphallus is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.
| Gene | How often it is seen | Conditions |
|---|---|---|
| SAMD9sterile alpha motif domain containing 9 | Always | In 1 condition |
| CILK1ciliogenesis associated kinase 1 | Often (30–79%) | In 1 condition |
| FANCFFA complementation group F | Often (30–79%) | In 1 condition |
| GATA4GATA binding protein 4 | Often (30–79%) | In 1 condition |
| THOC2THO complex subunit 2 | Often (30–79%) | In 1 condition |
| CDKN1Ccyclin dependent kinase inhibitor 1C | Sometimes (5–29%) | In 1 condition |
| HMGA2high mobility group AT-hook 2 | Sometimes (5–29%) | In 1 condition |
| HSD3B2hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 2 | Sometimes (5–29%) | In 1 condition |
| IGF2insulin like growth factor 2 | Sometimes (5–29%) | In 1 condition |
| PLAG1PLAG1 zinc finger | Sometimes (5–29%) | In 1 condition |
| RTTNrotatin | Sometimes (5–29%) | In 1 condition |
| SIN3ASIN3 transcription regulator family member A | Sometimes (5–29%) | In 2 conditions |
| TOE1target of EGR1, exonuclease | Sometimes (5–29%) | In 1 condition |
| TRRAPtransformation/transcription domain associated protein | Sometimes (5–29%) | In 1 condition |
| OPHN1oligophrenin 1 | Not recorded | In 1 condition |
| TACR3tachykinin receptor 3 | Not recorded | In 1 condition |
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.
Broader traits
Where this comes from
- The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
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