QandAs: Health

What Is A Nodule?

Answer:
A Nodule is defined as the small, hard, and painful

lump of tissue that is formed under the skin in response to injury.

The word “nodule” is originally derived from a Latin word which means “knot”. A nodule is roughly spherical abnormal structure that can be experienced easily by touching the affected part or area of the skin. A nodule is formed as a result of deep break in the follicle wall and the contaminated debris empties into the dermis and ultimately infects the adjoining follicles. Nodules are generally benign that don’t require any medical attention but sometimes they can interfere with the other functions of the body. However, nodules can also be malignant in nature and so one must not hesitate to consult a physician.

In geology, nodule may refer to the solid replacement bodies of chert or iron oxide with spherical or irregular rounded shape. Such nodules are formed due to the diagenesis of a sedimentary rock.