Rare diseases · Sign or symptom
Tachycardia
Fast heart rate
HP:0001649
What it means
A rapid heartrate that exceeds the range of the normal resting heartrate for age.
Rare diseases that can present with this67
Very common80–99%
9- Common arterial trunk
- Congenital fibrinogen deficiency
- Congenital hyperinsulinism due to HNF4A deficiency
- Congenitally uncorrected transposition of the great arteries
- Histiocytoid cardiomyopathy
- Non-insulinoma pancreatogenous hypoglycemia syndrome
- Resistance to thyroid hormone due to a mutation in thyroid hormone receptor beta
- Scorpion envenomation
- Sepsis in premature infants
Common30–79%
30- Acute intermittent porphyria
- Addison disease
- Allan-Herndon-Dudley syndrome
- Autosomal dominant hyperinsulinism due to Kir6.2 deficiency
- Autosomal dominant hyperinsulinism due to SUR1 deficiency
- Bacterial toxic-shock syndrome
- Carney triad
- Cholera
- Cocaine intoxication
- Complete atrioventricular septal defect
- Congenital lobar emphysema
- Congenital total pulmonary venous return anomaly
- Coronary arterial fistula
- Double outlet right ventricle
- Ethylene glycol poisoning
- Fatal familial insomnia
- Hemorrhagic fever-renal syndrome
- High altitude pulmonary edema
- Hydroxykynureninuria
- Hyperinsulinism due to HNF1A deficiency
- Hyperinsulinism due to UCP2 deficiency
- Mercury poisoning
- Mucopolysaccharidosis-like syndrome with congenital heart defects and hematopoietic disorders
- Neuroleptic malignant syndrome
- Peripartum cardiomyopathy
- Plague
- Serotonin syndrome
- T-cell based immunotherapy-associated cytokine release syndrome
- Tetanus
- Tularemia
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
Also called: Elevated heart rate · Heart racing · Increased heart rate · Racing heart · Rapid heart beat
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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.