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The Human Phenotype Ontology (HPO) provides the following list of features that have been reported in people with this condition. Much of the information in the HPO comes from Orphanet, a European rare disease database. If available, the list includes a rough estimate of how common a feature is (its frequency). Frequencies are based on a specific study and may not be representative of all studies. You can use the MedlinePlus Medical Dictionary for definitions of the terms below.
| Signs and Symptoms | Approximate number of patients (when available) |
| Abnormality of movement | 90% |
| Functional respiratory abnormality | 90% |
| Recurrent singultus | 90% |
| Abnormality of temperature regulation | 7.5% |
| Cerebral ischemia | 7.5% |
| Coronary artery disease | 7.5% |
| Dehydration | 7.5% |
| Diabetes insipidus | 7.5% |
| Neoplasm of the nervous system | 7.5% |
| Renal insufficiency | 7.5% |
| Sleep disturbance | 7.5% |
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These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.
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My friend has chronic hiccups. His doctors have discovered tumors near his phrenic nerve and suspect that this may be the cause. They have recommended a number of different drug therapies, but nothing has worked. Has there been others with cases like his? See answer
I have experienced several bouts of hiccups that go on for several weeks to months with no relief. I have had all of the normal tests to determine a cause, but no cause has been identified. I also have other stomach problems. What causes intractable hiccups? What tests may be conducted to determine the underlying cause of intractable hiccups? Can intractable hiccups be related to other stomach problems? How might intractable hiccups be treated? See answer
