From MedicalNewsToday.com….
It is common for raised bumps to develop on the skin and there are many different causes. Bumps can range in size and color. Some types are painful, while others do not cause discomfort.
There are many reasons a person may develop raised skin bumps. Most of the time, the bumps are harmless. However, a person should see a doctor if they have concerns. A bump can sometimes indicate a problem such asTrusted Source skin cancer.
Skin bumps can occur anywhere on the body and result from a range of causes. Among these causes are:
acne
allergic reaction
trauma/friction
skin cancer
infection
This article discusses raised skin bumps that result from these causes, including their appearance and possible treatments.