Why do my armpits smell when they never used to?

  1. Why do my armpits smell when they never used to?

Why do my armpits smell when they never used to?

Changes to body odor may be due to puberty, excessive sweating, or poor hygiene. Sudden changes are typically caused by the environment, medications, or foods that you eat. However, body odor, especially sudden and persistent changes to your normal odor, can sometimes be a sign of an underlying condition.