Is a brown spot on your body turning red and itchy when you rub it? This could be Urticaria Pigmentosa!

Have you ever noticed a red-brown spot on your child's or your own body? Maybe you just gently stroked the spot with your finger, and suddenly the spot turned red, started to itch, and a small blister appeared on top. If this experience is familiar to you, it is very important to be aware of the condition we are talking about today.

Simply put, what is Urticaria Pigmentosa?

Urticaria Pigmentosa is a type of hives that occurs on the skin. It is most commonly seen in young children and young adults. It is actually a form of a condition called `mastocytosis'.

Now you may be wondering what `mastocytosis` is. It's very simple. ``mast cells`` are a special type of cell in our body's immune system. They are like the body's security guards. When for some reason these mast cells accumulate in excess in one area of ​​the skin, we call it Urticaria Pigmentosa. However, these mast cells can accumulate not only in the skin, but sometimes in other organs such as the bones and intestines. Then it turns into a condition called ``systemic mastocytosis``. But don't worry, most of the time, Urticaria Pigmentosa in children is limited to the skin.

Why does something like this happen?

The main reason for this is the ``mast cells`` that we talked about earlier. These are a type of white blood cell that is produced in our bone marrow. These cells are found all over our bodies, especially where we come into contact with the outside world, such as the skin, lungs, and intestines. When something like a germ enters the body, these mast cells release a chemical called ``histamine`` to help protect the body.

Urticaria Pigmentosa is caused by a genetic mutation that causes these mast cells to accumulate in excess in the skin. This genetic change usually occurs while a child is still in the womb. However, it is not something that is inherited from parents to children . The exact cause of this mutation has not yet been found.

If adults get this condition, it can be a little more severe. It's called `indolent systemic mastocytosis`. In this case, mast cells accumulate in places like the bone marrow in addition to the skin. Very rarely, this condition can develop into a cancerous condition called `mast cell leukemia`. But again, these are very rare things . 99% of Urticaria Pigmentosa that occurs in children is not that severe.

What are the symptoms of this disease?

The main and most obvious symptom is the `Darier's sign` that we talked about. That is, the brown spots become red and itchy when rubbed. In addition, some people may also experience the following symptoms.

More than 75% of Urticaria Pigmentosa patients are children under the age of 10. In most children, this condition is limited to the skin and improves with age.

How does a doctor diagnose this?

In most cases, your doctor can easily diagnose this condition by looking at the spots on your skin and checking for Darier's sign. No other tests are needed.

However, if there is any doubt as to whether this condition is not limited to the skin but has also affected other parts of the body, the doctor may recommend the following tests.

• Blood test (`Blood count`): Learn about the different types and amounts of cells in the blood.
• Serum tryptase test: Checks for the presence of an enzyme in the blood that is released by mast cells.
• Bone density scan: See how strong your bones are.
• A bone marrow test: Checks whether the bone marrow is producing healthy cells.

Treatment methods and how to control the disease

The good news is that for most children, Urticaria Pigmentosa will resolve on its own as they get older . There is no specific treatment to prevent new spots from forming. Existing spots can take years to fade.

As long as the condition is limited to the skin, no major treatment is usually needed. Your doctor may recommend the following to help manage your symptoms:

• Oral antihistamines: Control itching and swelling.
• Corticosteroid creams: Apply to itchy areas.
• Cromolyn sodium: A medicine given to treat symptoms such as vomiting and diarrhea.
• EpiPen: A device that is given to people who have a very severe allergic reaction (anaphylactic reaction) to use in an emergency. Not everyone needs this.

Things to avoid in particular

The most important thing in this disease is to stay away from triggers that aggravate the symptoms, that is, things that cause the spots to itch and become red.

Important: If you or your child needs to take medication for another condition, be sure to inform your doctor about Urticaria Pigmentosa.

Can complications occur?

Very rarely, this condition can progress to `systemic mastocytosis`. Such people are at increased risk of a severe allergic reaction called `anaphylactic shock`, which can be life-threatening. If you experience symptoms such as difficulty breathing and loss of consciousness , you should immediately go to a hospital's emergency department (ETU) .

Other complications of systemic mastocytosis include:

• Osteoporosis: Weakening of the bones.
• Cytopenia: Decreased production of blood cells in the body.
• Liver problems.
• Cancer (very rare).

Again, these are very rare complications. They are very rare in children with Urticaria Pigmentosa.

urticaria pigmentosa, mastocytosis, Darier's sign, skin diseases, children's diseases, itching, brown spots, histamine