Debra Wood, RN
Porphyria is a group of disorders. The disorders lead to a buildup of porphyrins in the body. Porphyrins help to make a part of the red blood cell. Excess amounts of porphyrins can cause damage to your body. It most often affects the nervous system and skin.
Some porphyria disorders include:
Most types of porphyrias are inherited through genes. They may be passed on by one or both parents.
Factors that may increase you chance of porphyria include:
Porphyria attacks may be triggered by:
Some types of porphyria start in early childhood, some at puberty, and others during adulthood. Attacks may be separated by long periods of time.
Porphyria can cause skin or nervous system problems. Urine may also be reddish in color or darken after standing in the light. Other specific symptoms will depend on the type of porphyria.
Nervous system symptoms occur most often after puberty. Nerves of the intestines can cause gastrointestinal problems. Attacks can last from days to weeks. Symptoms of future attacks resemble the initial episode and may include:
This is the most common porphyria. Most are not inherited. They are acquired at some point.
Symptoms are primarily in the skin and increase with sun exposure. Symptoms may include:
Skin symptoms may occur before or during sun exposure. Symptoms include:
Other symptoms may include:
This form is rare.
Symptoms may include:
The doctor will ask about any symptoms. A medical and family history will be taken. A physical exam will also be done.
The symptoms can be vague. As a result, the diagnosis is often delayed.
Your bodily fluids and waste may be tested. This can be done with:
For all types of porphyria, treatment includes the following:
Porphyria that affects the skin requires special attention to protect the skin from injury and/or infection.
Additional treatment depends on the type of porphyria:
You may need to be hospitalized during an attack. Your doctor will work with you to determine what set off the attack. Common triggers include:
Treatment for acute intermittent porphyria may include:
Your doctor may need to identify the triggers. Common triggers include:
Treatment of porphyria cutanea tarda may include:
The primary treatment step is to avoid or limit exposure to sunlight. Other
treatment steps may include:
Erythropoietic protoporphyria may also be triggered by dieting or fasting. Your doctor will discuss a healthy diet plan.
Genetic testing may identify people at risk for porphyria. If there are people in your family with porphyria, you may be eligible for testing. The counselor will help find the risks for this disorder in you and your offspring.
American Liver Foundation
National Institute of Diabetes and Digestive and Kidney Diseases
Canadian Liver Foundation
Canadian Organization for Rare Disorders
The American Porphyria Foundation
http://porphyriafoundation.com/about-porphyria. Updated June 23, 2010. Accessed August 12, 2013.
Acute intermittent porphyria. EBSCO DynaMed website. Available at:
https://dynamed.ebscohost.com/about/about-us. Updated July 9, 2010. Accessed August 12, 2013.
Porphyria cutanea tarda. EBSCO DynaMed website. Available at:
https://dynamed.ebscohost.com/about/about-us. Updated November 29, 2010. Accessed August 12, 2013.
Erythropoietic porphyria. EBSCO DynaMed website. Available at:
https://dynamed.ebscohost.com/about/about-us. Updated June 9, 2010. Accessed August 12, 2013.
National Digestive Diseases Information website.
http://digestive.niddk.nih.gov/ddiseases/pubs/porphyria/. Updated April 30, 2013. Accessed August 12, 2013.
Last reviewed August 2013 by Michael Woods, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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