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.

In very rare cases, an itchy scalp can be a sign of lymphoma, Dr. Haley says, specifically, a form called “Cutaneous T-Cell ...

Indolent non-Hodgkin lymphoma and chronic lymphocytic leukaemia Non-Hodgkin lymphomas can be classified according to the speed at which they progress. Those that grow and spread slowly are ...