A painful, swollen area at the back of the scalp or neck can sometimes be more than an ordinary pimple. The image appears to show multiple inflamed lesions and a large irritated swelling near the hairline, with a medical professional examining the area. However, an exact diagnosis cannot be made from a photograph alone.

Conditions such as infected cysts, boils, folliculitis, abscesses, or inflammatory scalp disorders can produce similar-looking symptoms. When several lesions appear together or one becomes significantly swollen, professional evaluation is important.

What Could Cause Painful Lumps on the Scalp?

The scalp contains thousands of hair follicles and oil-producing glands, making it susceptible to several types of skin problems.

1. Infected Hair Follicles

Folliculitis occurs when hair follicles become irritated or infected. Mild cases may look like small pimples, while deeper infections can become painful and swollen.

2. Boils and Abscesses

A bacterial infection can develop deeper inside the skin, producing a collection of pus. These lesions may become increasingly tender, warm, red, and swollen.

3. Infected Epidermoid Cysts

A cyst can remain unnoticed for a long time before becoming inflamed. Once irritated or infected, it may suddenly enlarge and become painful.

4. Chronic Scalp Conditions

Repeated inflammatory lesions around the scalp and neck can sometimes be associated with chronic dermatological conditions. Recurrent or widespread problems should be assessed by a dermatologist.