Clinical Features of Hyperprolactinaemia	

The symptoms associated with hyperprolactinaemia (Fig. 4.3) may be due to: 
• The direct effects of excess prolactin, such as the induction of galactorrhoea or hypogonadism.
• The effects of the structural lesion causing the disorder (i.e. the pituitary tumour in hypopituitarism) leading to, for example, headaches, visual field defects, or external ophthalmoplegia.
• Associated dysfunction of secretion of other anterior pituitary hormones. 

See later:
• Galactorrhoea in Hyperprolactinaemia