How do you know what your problem is?

atopic dermatitis

Atopic dermatitis and psoriasis have similar symptoms, which is why it is not easy to decipher what it is. This test will help you find out what’s going on …

Atopic dermatitis or psoriasis?

Answer each of the following questions honestly, then collect the answers marked with the number 1, as well as those marked with the number 2, and find out what is likely.


  1. Is the affected area muted pink (light skin tones) or light purple (dark skin)?
  2. Is it important that pink is red (in light skin tones) or dark purple (in dark skin tones)?


  1. Does it usually appear on the face, arms, or neck?
  2. Is it in the elbows, knees, skin, navel, gluteal fold, or nails?


  1. Is the “seal” dry and scaly?
  2. Does the affected area look like a silver scale with a reptile-like texture?


  1. Is there an itchy sensation?
  2. Or does it feel more itchy and tingling?


  1. Does the affected area “merge” with the surrounding healthy skin?
  2. Or is it clearly limited, as if you could draw a line around its contour with a pencil?


It is the most common type of eczema with a high genetic predisposition. It is thought to be the result of an anomaly of filigree, the major epidermal protein involved in maintaining the function and integrity of the skin barrier. The onset of this type of eczema varies with age. You will notice it in babies most often on the outside of the thigh and arms, as well as on the face and cheeks. In adults, it usually appears on the face, arms, and neck. If you notice scaly spots on the outside of your arms or legs, you may experience atopic dermatitis again, as not all people appear the same way. In addition, it is not impossible to have another type of eczema, such as contact dermatitis (caused by contact with an irritating skin agent).


This is an autoinflammatory disease. When certain pathways of the immune system are overactive, it causes inflammation at the level of the skin. Basically, everything is in your DNA. However, this disease can also be caused by taking certain medicines, such as beta-blockers used for heart disease, or by treating a bacterial infection, such as a sore throat. Psoriasis most often occurs on the elbows and knees, but can also occur on the skin, nails, gluteal fold, and navel. The last three locations are particularly rare in the case of eczema and are more common for psoriasis. Another sign of psoriasis can be joint pain, especially in the lower back – fingers, ankles and toes. This pain can occur before but after the onset of the classic rash that characterizes psoriasis. triocean / iStock via Getty Images

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