In the axilla, the axillary artery is surrounded by the brachial plexus. Breast cancer typically spreads via lymphatic vessels to the lymph nodes found in the axilla. Underarm hair, also known as axillary hair, is the hair in the underarm area ("axilla"). Also, the lymph nodes in the axilla area and lower neck are examined. Temperature can be measured from the mouth, rectum, axilla (armpit), ear, or skin. The term "underarm" typically refers to the outer surface of the axilla. The grooves run between the axilla to the groin. More often the temperature is taken in the mouth, axilla, ear or groin. Bullous impetigo can appear around the diaper region, axilla, or neck. The accuracy from the axilla is known to be inferior to the rectal temperature. It is the lateral wall of the axilla. Pain traveled up the arm to the axilla, which developed painful masses. The right arm is broken off just below the axilla. As a PICC travels through the axilla, it can also become kinked, causing poor function. Androsterone is found in the human axilla and skin as well as in the urine.