Everything You Need to Know About Psoriasis

Pustular Psoriasis

If you’re seeing raised white bumps on your skin, they could be a sign that you’re dealing with pustular psoriasis. The bumps appear white as they’re filled with a white fluid made up of white blood cells. Around these raised bumps, the skin tends to be quite red and inflamed.

This type of psoriasis is a lot less common, with plaque psoriasis being right up there as the most common type of psoriasis that people suffer from. 

Guttate Psoriasis

Guttate psoriasis generally appears on the upper body, arms, or legs. It usually presents itself as small pink spots over a relatively large area of the body. It’s pretty uncommon and is generally seen in children or people under 30 years of age, according to Healthline. 

Erythrodermic Psoriasis 

This one’s a rare one, but it can affect three percent of people who have psoriasis at some point in there life – whether it’s just the once, or several times. When erythrodermic psoriasis presents itself, it tends to take over a lot more of the body than other types of psoriasis – and it’s a lot more intense.

If you look up some of the photos, you’ll see it can get very red and inflamed, and often large amounts of skin will shed at one time. This has been described as sheets of skin flaking off, instead of just small amounts of flakey skin as seen in plaque psoriasis. 

Psoriatic Arthritis

Finally, there’s another condition that can end up affecting people who are prone to psoriasis. Psoriatic arthritis generally appears in people sometime between the ages of 30 and 50.


It’s an inflammatory form of arthritis that can cause pain and swelling in the joints. There are ways to manage psoriatic arthritis, including medications, but there are also the general well-being tips that can help ease the pain, including exercising and getting enough sleep.

What Can Trigger Psoriasis?

The environmental factors that can trigger psoriasis flare-ups include stress, skin injuries, infection, and medications. Remember, there’s still no set rules around which triggers cause psoriasis, and which are just common coincidences. However, some psoriasis triggers that are always mentioned when psoriasis is talked about.


Stress is an interesting environmental trigger when it comes to psoriasis. Not only can being under stress bring about a flare-up, but knowing you have psoriasis can be stressful in itself, causing psoriasis to get worse. It’s a bit of a vicious cycle.

Stress can be anything from suffering from anxiety in everyday situations, through to a traumatic life event, or suffering from a post-traumatic stress disorder. Studies do show that there is an intrinsic link between suffering from stress and having a psoriasis flare-up.

Skin Injuries

There’s something called Koebner’s Phenomenon, which was founded by German dermatologist Heinrich Koebner way back in 1876. What he discovered was that in some people who have psoriasis, when they injure themselves in the form of cuts, scrapes, grazes, or the likes, they may find that they end up getting a psoriasis flare-up.

You may not even know that this is what you’re dealing with as sometimes psoriasis flare-ups thanks to skin injuries may take a long time to appear. Even then, there’s no distinct look to the psoriasis flare-up you may get. It could look like a line of psoriasis, or it may take over a large area of skin. There’s no one size fits all, unfortunately.

Next page: More information on common psoriasis flare-up triggers you should be aware of.

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