If you've ever had dandruff, with its telltale white flakes, you probably know that it can be a little embarrassing. This is especially true for kids and teenagers, who may already be self-conscious about their looks.
Fortunately, dandruff is harmless and can almost always be controlled, often with simple over-the-counter remedies.
Dandruff is another name for a condition called seborrheic dermatitis, or seborrhea, specifically seborrhea that occurs on the scalp. It's a very common condition in kids and adults alike, regardless of age or race.
Dandruff causes flaky, white, or yellowish skin to form on the scalp and other oily parts of the body. Other areas that can get seborrhea include the eyebrows, eyelids, ears, crease of the nose, back of the neck, armpits, groin, and bellybutton.
In some cases, dandruff can cause redness in the affected area and may appear crusty and start to itch, sometimes pretty badly. On rare occasions, dandruff can even lead to hair loss if it isn't treated. Any lost hair should grow back once the dandruff is treated, though.
Dandruff is not contagious or an indication of poor hygiene, and it often can be controlled by daily shampooing with a gentle shampoo. In more severe cases, a doctor may recommend a medicated shampoo or cream.
The exact cause of seborrhea isn't known, although some researchers believe it can be caused by an overproduction of skin oil (sebum) in the oil glands and hair follicles. A type of yeast (fungus) called malassezia can grow in the sebum along with bacteria. This may be another factor in the development of seborrhea. Seborrhea happens in people (like teenagers) with high hormone levels, which also may play a role.
The flakes associated with dandruff sometimes can be caused by conditions other than seborrhea, including:
Dandruff often runs in families. Men are a little more likely than women to get it. Other things can also make dandruff more likely, like having oily skin, stress, a neurological condition such as Parkinson's disease, or a condition like HIV (human immunodeficiency virus) that harms the body's immune system.
Often, the first symptom someone with dandruff will notice are white flakes of dead skin in the hair or on the shoulders. The scalp may also become itchy and scaly.
Other signs of seborrhea:
Most cases of dandruff won't require a doctor's visit and can be treated with special dandruff shampoos available without a prescription.
Sometimes the dandruff is particularly hard to treat, or the rash is coming from a completely different problem. If your child's dandruff doesn't get better after a few weeks of using dandruff shampoo, or if the skin becomes red, swollen, or drains fluid, you should contact your doctor. Also call if your child's seborrhea gets worse, spreads to other parts of the body, or causes hair loss.
Many cases of mild dandruff can be treated just by shampooing every day with a gentle shampoo. This will reduce oiliness and keep dead skin cells from building up.
Moderate cases of dandruff usually can be treated with an over-the-counter dandruff shampoo. Many types are available and not every one works for every person, so you may need to experiment until you find the one that works for your child.
The different types of dandruff shampoos include:
At first, kids with dandruff may need to use one of these shampoos every day to get their dandruff under control. After that, most can cut back to once or twice a week.
Have your child massage the shampoo into the scalp and let it sit for at least 5 minutes before rinsing it out. After rinsing, kids can use regular shampoo or conditioner if they want, as the treatment shampoos tend to be a little smelly.
If over-the-counter dandruff shampoos don't improve your child's dandruff, or if seborrhea develops in places other than the scalp, talk to a doctor. You may need to get your child a prescription-strength shampoo, an antifungal lotion, or cream containing steroids.
After treatment, some people will notice that areas of skin that had seborrhea will be lighter in color than the rest of their skin. This is more common in those with darker skin. This color difference will fade over time and the skin's color will eventually return to normal.
Dandruff is a chronic condition, meaning it can't be cured, but it can almost always be kept under control. Once it's under control, it's usually impossible to detect and will go from being a problem to something that's barely on your child's mind.
Reviewed by: Rupal Christine Gupta, MD
Date reviewed: August 2014
|American Academy of Dermatology Provides up-to-date information on the treatment and management of disorders of the skin, hair, and nails.|
|National Eczema Association This site contains information about eczema, dermatitis, and sensitive skin.|
|American Academy of Family Physicians This site, operated by the American Academy of Family Physicians (AAFP), provides information on family physicians and health care, a directory of family physicians, and resources on health conditions.|
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