Ichthyosis Bullosa of Siemens: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Ichthyosis Bullosa of Siemens?
A dermatologist usually treats ichthyosis bullosa of Siemens, while a primary care doctor can help with everyday skin care and watch for infection. Some people also see a genetics specialist. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What it is
Ichthyosis bullosa of Siemens is a rare skin condition present from birth because of a changed gene. Ichthyosis refers to a group of skin problems that cause dry, thick, scaly skin; this type also causes blisters, usually worst where the skin bends a lot, like the knees and elbows.
Symptoms
The most noticeable sign is skin that looks thick, rough, and scaly, mostly near the elbows and knees. The face, palms, and soles are usually normal or only mildly affected. Blisters form easily where skin rubs or bends, and the raw areas heal on their own. Some people notice skin peeling in thin sheets, which doctors call molting.
Causes and who gets it
This condition is caused by a change in a gene named KRT2. When it does not work correctly, the skin becomes fragile, forming blisters and scales. It is passed down in an autosomal dominant pattern: a child needs the changed gene from only one parent, though sometimes the change appears for the first time in a child.
How doctors diagnose it
A dermatologist often suspects this condition from the way the skin looks and the family history. Genetic testing on a blood or saliva sample can confirm it by looking for changes in the KRT2 gene.
Treatment
There is no cure, but treatment can make the skin more comfortable, mainly by keeping it moist and protecting it from rubbing. Thick creams and ointments, called emollients, help soften the scales. Small blisters are best left to heal on their own, because broken skin can get infected. Redness, warmth, or pain can signal infection needing an antibiotic.
When to see a doctor
Anyone with long-lasting dry, scaly skin or skin that blisters easily should see a doctor. A baby with blistering skin should be seen promptly. Spreading redness, warmth, pus, or fever needs medical care right away.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Either can offer longer visits, routine skin care, infection treatment, and prescription refills.
Common questions
Is ichthyosis bullosa of Siemens contagious?
No. It is caused by a changed gene, not by a germ. It cannot spread from person to person through touch.
Will my child have the same condition?
If one parent has the condition, each child has a chance of inheriting the changed gene. A genetic counselor can explain the chances and offer testing options for families.
Does the blistering go away?
Many people have fewer blisters as they get older, but the skin scaling usually continues. The pattern differs from person to person.
Can regular lotion help?
Thick, plain moisturizers often help soften the scales and keep the skin more comfortable. A doctor can suggest which ingredients are most useful and which products to avoid.
Sources
- NIH Genetic and Rare Diseases Information Center - Ichthyosis bullosa of Siemens
- National Organization for Rare Disorders (NORD) - superficial epidermolytic ichthyosis - National Organization for Rare Disorders
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
