Can eczema or psoriasis grow on scar tissue?

Yes, both eczema and psoriasis can develop on scar tissue. Scar tissue may be more susceptible to skin conditions due to changes in skin texture and function, which can trigger inflammation or irritation. Additionally, the underlying factors that contribute to these conditions can still be present in areas of scar tissue. It's important to consult a dermatologist for appropriate diagnosis and management if these conditions occur on scarred skin.