SCALP PSORIASIS: WHO GIVES AND CAUSES

Who gets scalp psoriasis?

Psoriasis is common on the scalp. Researchers estimate that at least half (50 percent) of the people who have plaque (plak) psoriasis will have at least one flare-up on the scalp.

What causes scalp psoriasis?

Regardless of where psoriasis forms, the cause is the same. Psoriasis develops when a person’s immune system has faulty signals that tell skin cells to grow too quickly. New skin cells form in days rather than weeks. The body does not shed these excess skin cells. The skin cells pile up on the surface of the skin, causing patches of psoriasis to appear.

SCALP PSORIASIS: SIGNS AND SYMPTOMS

Psoriasis can appear anywhere on the scalp. Sometimes a small patch develops, which can be easy to hide with hair. Scalp psoriasis also can cover the entire scalp. When psoriasis appears on the scalp, you may notice:

• Reddish patches on the scalp. Some patches are barely noticeable. Patches also can be very noticeable, thick, and inflamed.
• Dandruff-like flaking and silvery-white scale. Scalp psoriasis can look a lot like dandruff. Many people who have scalp psoriasis see flaking. But there are differences between scalp psoriasis and dandruff. Unlike dandruff, scalp psoriasis causes a silvery sheen and dry scale on the scalp.
• Dry scalp. The scalp may be so dry that the skin cracks and bleeds.
• Itching. This is one of the most common symptoms. For some the itch is mild; others have intense itching that can interfere with everyday life and cause sleepless nights.
• Bleeding. Because scalp psoriasis can be very itchy, almost everyone scratches. Scratching can make the scalp bleed. Scratching also tends to worsen the psoriasis. Scratching can make the patches larger and thicker. This is why dermatologists tell their patients, “Try not to scratch your scalp.”
• Burning sensation or soreness. The scalp can burn. It can feel extremely sore.
• Temporary hair loss. Scratching the scalp or using force to remove the scale can cause hair loss. Once the scalp psoriasis clears, hair usually regrows.

These signs and symptoms can come and go. Some people have only one mild flare on their scalps. Others have many flare-ups, which can range from mild to serious. Many things can trigger a flare-up, including stress, cold, and dry air.

How do dermatologists diagnose scalp psoriasis?

To diagnose scalp psoriasis, a dermatologist looks at the scalp.

Sometimes a dermatologist also needs to remove a bit of skin. This skin is sent to a lab. The lab report will tell the dermatologist whether the patient has scalp psoriasis.

How do dermatologists treat scalp psoriasis?

Scalp psoriasis causes many people discomfort. Some people feel embarrassed. Treatment can ease these problems. There are many safe and effective treatments. Some people get relief from a medicated shampoo or solution. A few of these can be purchased without a prescription.

But scalp psoriasis can be stubborn. Many people see a dermatologist for treatment. A dermatologist can tell you what can help. The following types of treatment can help scalp psoriasis:

• Medicine applied to the scalp.
• Medicated shampoos.
• Scale softeners.
• Injections.
• Light treatments.
• Biologics and other medicines that work throughout the body.