An itchy scalp can be caused by infections, allergies, genetics, and other factors. A dermatologist can evaluate and develop a treatment plan. Skin conditions like psoriasis and seborrheic dermatitis can also contribute, as can reactions to hair products and medication.
An itchy scalp can be caused by infections, congenital conditions, allergies, and a variety of other factors. Patients who notice scalp changes can see a dermatologist for advice and evaluation to determine their cause and develop a treatment plan. In some cases, it may be necessary to see a specialist to manage an unusual condition of the scalp or a disorder associated with more systemic health problems.
One reason for having an itchy flaky scalp is the result of an infection with fungi, bacteria, or other organisms. Localized inflammation can occur even without the presence of an infectious agent. The patient may notice pustules or lumps and seeps along with the flakes and itching. Topical creams are available to soothe an irritated scalp and address the underlying cause of the infection.
Some skin conditions such as psoriasis and seborrheic dermatitis can involve the scalp. In this case, the condition can be difficult to treat, but it can often be managed with shampoos, topical creams, and other tools. Skin problems may be present elsewhere on the body for these patients, especially around the folds of skin including the back of the knees and around the nose.
Allergies and irritations can contribute to the condition. Some patients are allergic to ingredients in hair products and develop a reaction on the scalp, while others may notice problems after pulling their hair or wearing sharp pins. Systemic allergies can also be the basis for an itchy flaky scalp. For example, allergies to an ingested food can cause a rash to appear.
Genetics can also play a role. Some families have a history of dandruff and a generally dry scalp. Dryness can cause flakes, which can itch, and people can make it worse by scratching. An itchy, flaky scalp in this case may be treatable with deep moisturizing hair and scalp products. These help the body retain moisture and limit flaking, along with the associated skin irritation.
Scalp itching can also arise as a reaction to medication or as a response to something like the conductive gel used in an EEG study. Patients who notice sudden changes in scalp health can discuss any changes in their habits with a dermatologist to explore possible causes. It may be possible to treat a flaky, itchy scalp by changing shampoos, adding moisturizer to a hair care regimen, or taking other simple steps. For more severe cases, medications are an option.
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