oversecretion

/ˈoʊvərsɪˌkriːʃən/
noun
  1. The production of too much of a substance by a gland or body part.
    • Oversecretion of oil by the skin can cause acne.
    • The doctor diagnosed the patient with oversecretion of growth hormone.
    • Oversecretion of stomach acid can lead to ulcers.