A bump on the scalp could be completely harmless, indicative of various skin diseases, or even malignant. But before you freak out, learn more about what could potentially cause bumps on the scalp ...

A bump on the head may appear after a fall or without injury. Even if the bump is small and doesn’t hurt, it may still be cause for concern – so it’s important to know the signs and symptoms ...

"I thought I had just knocked my head and it was a scab," he said about the bleeding lump on his head. "It was the size of a bubble wrap bubble and there was no pain. But it just wouldn't heal.

A second or two later, as you massage the area on the scalp where the blow struck, the stars disappear and everything returns to order, with no permanent damage and no cause for concern.

NEW YORK, Oct. 10 (UPI) -- Breakdancers who perform repetitive headspins risk a unique ailment -- a protruding lump on the scalp, hair loss and tenderness, a new study from Denmark cautions.

The unidentified 50-year-old was treated for an ear infection, and her physician diagnosed her itchy scalp lumps as cysts and prescribed her separate antibiotics, according to BMJ Case Reports.