A swollen parotid gland may occur for a number of reasons, which may be linked to inflammation of the gland (parotitis) with or without infection, blockage of the duct, chemical toxicity or growths in the parotid gland. Swelling may therefore present with pain and impaired functioning, or at times there may be no other symptoms that accompany the enlargement of the parotid.
Various pathologies that affect the parotid gland and lead to swelling may also affect the other salivary glands. This is discussed further swollen salivary glands. The parotid gland is located behind angle of the jaw, below and slightly in front of the ear. Swelling and tenderness will be evident in this area but may extend to the cheek and even below the mandible.