Rarely, adults with FHH may experience recurring inflammation of the pancreas (pancreatitis), a build-up of calcium crystals in certain joints of the body (chondrocalcinosis), and a build-up of calcium in the veins (vascular calcification).
This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.
|Medical Terms||Other Names||
|100% of people have these symptoms|
Low urine calcium levels
|80%-99% of people have these symptoms|
|Parathormone-independent increased renal tubular calcium reabsorption||0003529|
|Reduced ratio of renal calcium clearance to creatinine clearance||0003513|
|30%-79% of people have these symptoms|
Softening of the bones
|5%-29% of people have these symptoms|
|Episodic abdominal pain||0002574|
Tiredness[ more ]
High blood magnesium levels
Decreased urine magnesium
Low urine magnesium levels[ more ]
|Nausea and vomiting||0002017|
|1%-4% of people have these symptoms|
Autoimmune disorder[ more ]
Low calcium seizures
Related diseases are conditions that have similar signs and symptoms. A health care provider may consider these conditions in the table below when making a diagnosis. Please note that the table may not include all the possible conditions related to this disease.
Conditions with similar signs and symptoms from Orphanet
Primary hyperparathyroidism is clinically similar to FHH, apart from the presence of hypercalcemia. Other differential diagnoses include humoral malignant hypercalcemia and sarcoidosis (see this term).
Visit the Orphanet disease page for more information.
Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.
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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I have this condition. Are there different types? I was told by my doctors I have a double mutation. What does that mean? My doctors don't have any information for me. I have not been told to watch my diet or anything. I find it incredibly hard to lose weight. Is this calcium problem stopping me from losing weight? I was adopted at birth and do not have any genetic information. See answer