The BBC is facing an increasing number of sex discrimination claims, figures obtained under the Freedom of Information Act show.
Over the course of the last year, there were 12 cases in which female employees claimed to have been unfairly treated in this way.
This compared with nine during the 12-month period that preceded it and three the year before that.
The statistics were released following the unpopular sacking of Arlene Philips as a judge on Strictly Come Dancing.
After the corporation - which describes itself as the largest broadcasting organisation in the world - axed the 67-year-old, it faced accusations that it forces women off screen once they exceed a certain age.
Responding to the claims, a spokesman said: "Employing over 17,000 people means that on occasion there will be cases such as this but over the course of three years this represents a very small proportion of our total workforce."