Incontinentia Pigmenti: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Incontinentia Pigmenti?
A dermatologist, a skin doctor, and a geneticist, a doctor who treats inherited conditions, often lead care for incontinentia pigmenti. 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 is incontinentia pigmenti?
Incontinentia pigmenti, or IP, is a rare skin condition passed down through families. It affects the skin, hair, eyes, teeth, and nervous system. It is also called Bloch-Sulzberger syndrome. IP is estimated to affect 1.2 in 100,000 people worldwide. The features may be mild or gone by the time a person is an adult.
Symptoms
Skin changes usually come in stages that change through childhood and young adulthood.
- Many babies have a blistering rash at birth or in early infancy.
- The blisters heal on their own but can come back during illnesses with high fever.
- Wart-like spots come next and also heal on their own.
- The blisters and wart-like spots mainly show up on the arms and legs.
- Grey or brown patches in a swirled pattern appear in infancy and early childhood, then fade with time.
- Adults usually have lines of unusually light-colored skin on their arms and legs.
Other signs can include hair loss, small or few teeth, and lined or pitted fingernails and toenails. Vision problems can happen too, and an eye exam may show cataracts or crossed eyes. IP is associated with nervous system problems, including delayed development, intellectual disability, and seizures. Without a stroke or another brain problem, most people with IP have normal intelligence.
Causes and who gets it
Changes in the IKBKG gene cause IP. IP is passed on in an X-linked dominant pattern, which means the gene is on the X chromosome and one changed copy is enough to cause it in a girl. IP is much more common in females than in males. In males, a lack of the IKBKG protein appears to be lethal early in development, so few males are born with IP. Some people inherit the changed gene from one affected parent. Other cases come from new changes in the gene in people with no family history.
How doctors diagnose it
A child's health care provider does a physical exam, looks at the eyes, and tests muscle movement. The skin may show unusual patterns and blisters. To confirm the diagnosis, doctors may do blood tests, a skin biopsy, or a CT or MRI scan of the brain.
Treatment
There is no specific treatment for IP. Treatment is aimed at each person's individual symptoms. For example, glasses may be needed to improve vision. Medicine may be prescribed to help control seizures or muscle spasms. Genetic counseling may help people with a family history of IP who are thinking about having children.
When to see a doctor
Contact your provider if your child has symptoms of IP. Also reach out if you have a family history of IP and are thinking about having children. People with IP are at risk of stroke and vision loss, especially in the first year of life. Babies with IP should have eye exams by a pediatric ophthalmologist, an eye doctor for children, on a regular schedule, because eye problems can be managed well when found early. Call 911 or go to the emergency room if your child has a seizure, has trouble breathing, faints, becomes unconscious, has sudden weakness, or has a significant change in mental status, such as confusion.
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. Such a doctor can help with first exams and follow-up, and can help arrange care with skin, eye, and genetic specialists.
Common questions
Does incontinentia pigmenti affect boys?
Yes, IP can affect boys, but it is much more common in girls and women, and several dozen males have been identified.
How common is incontinentia pigmenti?
IP is not common, with an estimate of 1.2 in 100,000 people worldwide. Between 900 and 1,200 people have been reported in the scientific literature.
Can incontinentia pigmenti be treated?
There is no specific treatment for IP, so care focuses on each symptom. Medicine may help control seizures or muscle spasms, and glasses may help vision.
Can IP be passed to children?
Yes, some people inherit the changed gene from one affected parent. Genetic counseling may help people with a family history of IP.
Do the skin changes go away?
Some of them do. The skin patches fade with time, and the blisters and wart-like spots heal on their own. Adults usually have lines of lighter skin on their arms and legs.
Sources
- MedlinePlus Genetics - Incontinentia pigmenti
- MedlinePlus - Incontinentia pigmenti
- NORD - Incontinentia Pigmenti
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.
