The IRFU has asked for reports from Connacht and Leinster regarding last week's facilities at Energia Park.
The association has agreed to a Connacht request to investigate why they and Ulster were forced to change in temporary facilities close to bins.
The IRFU say they are appalled by the situation.
Meanwhile, The Connacht women’s team hopes more thought will go into changing facilities after their experience in Donnybrook last week.
Connacht have called for a review into the decision-making process that led to them having to use the poor facilities.