A raised swelling of variable size that may be tender. A lump in the groin may be due to any number of causes, including an infection, a hernia, an abscess, a mole, a localized response to irritation, and trauma to the area. Any lump in the area of the groin should be medically evaluated and diagnosed by a physician.
A swelling located in the groin region is typically caused by the enlargement of a lymph node due to an infection. Another frequent reason is a hernia, where the abdominal contents protrude through a weak area in the abdominal wall. In males, a lump in the groin may rarely be caused by an undescended testis. The appropriate treatment for this condition depends on its underlying cause.