An armpit lump—or axillary lump—can occur as a symptom of many conditions that range from harmless to serious. It is often the result of an enlarged lymph node. Many armpit lumps appear and then go ...

These structures include the axillary vein and artery; the brachial plexus; the long thoracic nerve, which innervates the anterior serratus muscle; the thoracodorsal nerve, artery, and vein ...

High blood pressure, stress, sun exposure, vein dysfunction, pregnancy, and other factors can contribute to the appearance of veins on the forehead. Genetic factors or age can influence whether ...