Bumps on your scalp can be a symptom of a few different health conditions. Most of the time, these bumps indicate an allergic reaction or clogged hair follicles, neither of which is usually a cause for concern.
Herein, why does my scalp hurt and feel bumpy?
Sores, blisters, or bumps on the scalp
Painful sores, blisters, or bumps that form on the scalp may be caused by: Infection of the hair shafts (folliculitis) or the skin (such as impetigo). An allergic skin reaction (contact dermatitis). Viral infections, such as chickenpox and shingles.
One may also ask, what causes ridges on scalp?
Cutis vertices gyrata (CVG) is characterized by thickening of the scalp, which becomes raised to form ridges and furrows resembling the cerebral gyri, which cannot be flattened by traction or pressure.