Psoriasis affects about 3% of adults in the United States. However, there are various forms of the condition, some of which are more common than others.
The above information comes from a 2021 study published in
Psoriasis is a chronic, autoimmune skin condition that causes inflammation and scaly patches on the skin. It induces inflammation in the body due to the multiplication of skin cells.
Although psoriasis can appear anywhere on the body, the
Read on to learn about how common psoriasis is, the prevalence of the different types, and more.
Research from 2021 estimates that
Further research estimates that psoriasis affects
Additionally, research from 2017 states that men may have more severe psoriasis than women.
A note about sex and gender
Sex and gender exist on spectrums. This article will use the terms “male,” “female,” or both to refer to sex assigned at birth. Click here to learn more.
Psoriasis can occur anywhere on the body, and every individual experiences the condition uniquely. This section explores different types of psoriasis and the prevalence of these forms.
This is the
A person with plaque psoriasis will develop raised skin patches with silvery or shiny scales. Sometimes, the plaques may look purple, dark brown, or red.
Plaque psoriasis often affects the knees, scalp, elbows, and torso. This form is often symmetrical, affecting the same body parts on either side.
Research states that
Learn more about plaque psoriasis.
Scalp psoriasis is a form of plaque psoriasis. It presents the same symptoms discussed above but only affects the scalp.
This is present in
Learn more about scalp psoriasis.
This form of psoriasis affects the genital area and the tops of the thighs. It is very common, affecting
Learn more about genital psoriasis.
Guttate psoriasis is
Symptoms include small, itchy spots which may appear on the arms, legs, or torso. They usually occur as a result of inflammation.
Learn more about guttate psoriasis.
A person with pustular psoriasis will experience small, painful lumps filled with pus. These spots will typically have red, purple, or dark brown skin surrounding them.
It is less common than the other forms, affecting about 3% of individuals with psoriasis.
Learn more about pustular psoriasis.
Inverse psoriasis is where smooth, inflamed skin develops in folds of the skin. This includes the underarms, genitals, under breasts, and in the buttocks. Rubbing and sweating can worsen the condition.
Inverse psoriasis occurs in 3–7% of people with psoriasis.
Learn more about inverse psoriasis.
Erythrodermic psoriasis causes scaly patches on most of the body. People with this form will also experience their skin shedding in large layers. It can cause dehydration, intense itching and pain, and changes in heart rate and temperature.
This type is rare, affecting just 2% of individuals with psoriasis. In some people, it may be life threatening.
Psoriasis can significantly impact a person’s life. The National Health Service (NHS) in the United Kingdom makes some of the following recommendations for individuals living with psoriasis:
- Self-care: This includes a person getting physical exercise, maintaining a moderate weight, and looking after their physical and mental health.
- Treatment: A person should take any prescription medications, as necessary, and discuss side effects with a healthcare professional.
- Reviews: It will often be a requirement for people with psoriasis to review and discuss any new symptoms or concerns with a medical team.
- Lifestyle changes: This may include stopping smoking, reducing alcohol intake, and managing one’s weight. A person should discuss these lifestyle changes with a healthcare professional.
- Look after mental health: Anxiety and low confidence are common in those with psoriasis due to the impact on their physical appearance. A person should take note of how they feel and discuss any concerns with a doctor or therapist.
Psoriasis affects approximately
Living with psoriasis can impact a person’s physical and mental health, so it is important to contact a healthcare professional to develop a comprehensive treatment plan.