The most common symptoms of scalp psoriasis include red patches of skin covered in thick, silvery-white scales. These patches can be itchy and burning. In some cases, scalp psoriasis can cause temporary hair loss due to excessive scratching or the presence of thick scales. Other signs include a dry scalp, dandruff-like flaking, and bleeding when scratching.
Causes of scalp psoriasis
The exact cause of scalp psoriasis is not fully understood, but it is thought to be related to an overactive immune system that triggers inflammation and rapid skin cell turnover. Genetic factors also play a significant role, as psoriasis often runs in families. Environmental factors such as stress, skin injuries, infections, and certain medications can also trigger or exacerbate the condition.
How scalp psoriasis differs from other skin conditions
Scalp psoriasis can be confused with other skin conditions such as dandruff or seborrheic dermatitis. However, there are some key differences. Unlike dandruff, which is characterized by oily, yellowish scales, scalp psoriasis is characterized by dry, silvery scales and red patches. Seborrheic dermatitis can also present with redness and scaling, but the scales are usually oily rather than dry. A dermatologist can provide an accurate diagnosis by examining the affected area.
When to see a doctor