A fungal infection, scalp ringworm may start off as small bumps on the scalp that itch. Scratching them can cause a scab. Gradually, the bump expands to form a large circle with a normal-looking ...

Bumps on the scalp can be caused by other skin disorders such as folliculitis, scalp acne, or dandruff. They could also show up due to an allergic reaction to a product or skincare routine.

So, if your scalp comes into contact with a product or ingredient that you're sensitive or allergic to, you can experience inflamed, itchy, sore red patches, says Massick. Picking these patches ...

But other scalp conditions may also cause pimple-like bumps that are not actually acne. These include: How to treat scalp acne Scalp acne can be treated at home with over-the-counter medicated ...