{
  "url": "https://dantelabs.com/traits/recurrent-singultus",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "recurrent-singultus",
    "id": "HP:0100247",
    "name": "Hiccup",
    "label": "Recurrent singultus",
    "definition": "A contraction of the diaphragm that repeats several times per minute. In humans, the abrupt rush of air into the lungs causes the epiglottis to close, creating a hic sound. Also known as synchronous diaphragmatic flutter (SDF), or singultus, from the Latin singult, the act of catching one's breath while sobbing. The hiccup is an involuntary action involving a reflex arc.",
    "synonyms": [
      "Recurrent hiccup",
      "Recurrent hiccough",
      "Recurrent synchronous diaphragmatic flutter"
    ],
    "systems": [
      {
        "slug": "constitutional-symptom",
        "name": "Constitutional symptom",
        "url": "https://dantelabs.com/traits/constitutional-symptom"
      }
    ],
    "broader": [
      {
        "slug": "constitutional-symptom",
        "name": "Constitutional symptom",
        "url": "https://dantelabs.com/traits/constitutional-symptom"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "gcsh",
        "symbol": "GCSH",
        "hgnc": "HGNC:4208",
        "name": "glycine cleavage system protein H",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gcsh"
      },
      {
        "slug": "zfpm2",
        "symbol": "ZFPM2",
        "hgnc": "HGNC:16700",
        "name": "zinc finger protein, FOG family member 2",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/zfpm2"
      },
      {
        "slug": "gldc",
        "symbol": "GLDC",
        "hgnc": "HGNC:4313",
        "name": "glycine decarboxylase",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gldc"
      }
    ]
  }
}