2. Common Causes of Scalp Bumps
Scalp bumps can arise from multiple sources. Seborrheic dermatitis produces yellowish, itchy scales. Folliculitis creates small, tender, inflamed bumps caused by bacteria or fungi. Pilar cysts—benign, fluid-filled sacs—may also appear and occasionally grow large. Psoriasis, a chronic autoimmune condition, causes thick, raised patches with silvery scales. Understanding these possibilities can help you narrow down what you’re seeing.
