Clinical features of psoriasis:
Psoriasis can affect any part of the skin; the most common sites are scalp, elbows, and knees. Psoriasis usually presents with symmetrically distributed, red, scaly plaques with well-defined edges. The scale is typically silvery white, except in skin folds. Itching is mostly mild but may be severe in some patients, leading to scratching and lichenification (thickened leathery skin with increased skin markings). When psoriatic plaques clear up, they may leave brown or pale marks that can be expected to fade over several months. Nails can also be affected leading to pitting, separation of the nail from its bed, yellowing and ridging of nails.
What causes psoriasis?
Psoriasis is multifactorial; its exact cause is not known. It is classified as an immune-mediated inflammatory disease (IMID) which means that there is an alteration in body’s immune system. Genetic factors are important. Many patients have family members with psoriasis. The patient’s genes affect their type of psoriasis and its response to treatment.
Aggravating factors :
Infections, Injuries such as cuts, abrasions (koebner phenomenon), Stressful event, Obesity, Smoking, Excessive alcohol, Medications such as lithium, beta blockers, antimalarials, painkillers
- Patients with psoriasis are more likely (than other people) to have other health conditions listed here.
- Joint Damage (Psoriatic arthritis) – Long-standing psoriasis affects joints causing inflammation and destruction of the joint.
- Pustular Psoriasis– This is a serious condition that presents with widespread sterile pustules on a background of red and tender skin.
- Metabolic Syndrome: obesity, hypertension, hyperlipidemia, gout, cardiovascular disease, type 2 diabetes.
- It is important to take early and regular treatment of psoriasis from an experienced dermatologist to prevent these dangerous conditions from affecting the patient.
Frequently Asked Questions
Psoriasis is like diabetes of skin. It can be controlled very well with drugs but regular treatment from an experienced dermatologist is required. Even full body psoriasis with joint pains can be controlled with the new injections now available which are given under the supervision of an experienced dermatologist.
This is completely false. Experienced dermatologist never ever gives oral steroids in the treatment of psoriasis. In fact, it is wrong to do so as the patient may land in pustular psoriasis after their withdrawal. We have treated hundreds of patients EVEN THE severest cases without ever giving steroids.
This is also not true. Psoriasis does not spread from one person to another. Many patients feel socially outcast as other people are afraid of getting a disease and do not even shake hands with them. Patients try to hide the lesions and are afraid to go out socially.