Found this on my son’s scalp. Have no idea what it is and we can’t get a doc appt soon. Tips?

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Scalp bumps have numerous origins. Seborrheic dermatitis produces yellowish, itchy scales. Folliculitis creates small, tender, inflamed bumps caused by bacteria or fungi. Pilar cysts—benign, fluid-filled sacs—can also appear, sometimes growing large. Psoriasis, a chronic autoimmune condition, causes thick, raised patches topped with silvery scales. Understanding these possibilities can help you narrow down what you’re seeing.

3. Psoriasis Vulgaris 101

Psoriasis vulgaris is the most widespread type of psoriasis. It occurs when the immune system mistakenly accelerates skin-cell growth, forming red, scaly plaques that may itch or crack. Although incurable, psoriasis can be controlled. Genetics, stress, infections, cold weather, and certain medications can spark flare-ups. Knowing these triggers helps with long-term management.

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