The present invention relates to the use of keratinocyte growth factor (KGF/FGF7) and pharmaceutical compositions thereof in the treatment of vaginal atrophy, dysuria, vaginal pain and/or vaginal dryness induced by a post-menopausal state, by surgical intervention, by illness and/or by chemotherapy or radiotherapy treatments.

An aqueous preparation containing a protein as an active ingredient which is stable in storage in solution and makes an injection pain reduced is provided. More specifically an aqueous preparation containing a phosphate buffer at a concentration of 1 to 20 mM and a protein as an active ingredient is provided. Further more specifically provided is an aqueous preparation containing a phosphate buffer at a concentration of 1 to 20 mM, human growth hormone as an active ingredient, a poloxamer as a non-ionic surfactant; and phenol as a isotonic agent.