Rescuers warned walkers to take extra care following the recent spell of wet weather as many fell routes are slippery.
The warning followed two callouts for Kendal Mountain Rescue Team yesterday.
Its volunteers were called to help a walker in the morning who had suffered serious lower-leg injuries after a simple slip on Hampsfell near Grange-over-Sands.
In the evening, Kendal MRT was called to a similar incident where a walker also had leg injuries on Winder, one of the Howgill Fells, overlooking Sedbergh.
A team spokesman said: “With all the wet weather recently, it’s pretty slippery on the hills and walkers should take even greater care than usual.”