What condition is indicated by red patches and blisters on the scalp?

The condition indicated by red patches and blisters on the scalp is psoriasis. Psoriasis is a chronic autoimmune condition characterized by the rapid buildup of skin cells, leading to scaling and red patches that may be itchy or painful. These patches can sometimes develop blisters, particularly if the skin is irritated or scratched.

Understanding the symptoms of this condition can help in proper identification and management. In contrast, eczema typically presents as dry, itchy patches rather than red patches with blisters, while ringworm (Tinea capitis) usually manifests in a more circular area of hair loss and scaling rather than blistering. Dandruff, on the other hand, typically represents a flaking and itchy scalp with minimal redness and no blister formation. This distinction is crucial for appropriate treatment and care.