TMZ previously reported that the 41-year-old actress was rushed out of the pool and sent to a nearby hospital.
Sources reportedly told TMZ that "no bones were broken but doctors wanted to ensure that Eggert suffered no internal injuries from the hard impact and that they were monitoring her kidneys in particular".
However, Eggert took to Twitter to reassure fans that she was not hospitalised.
Thnx 4 all the love but I am not in the hospital nor was I in a diving accident. Just have swelling and bruising on my back and kidney's. xo— Nicole Eggert (@NicoleEggert) April 19, 2013
Beauty queen Katherine Webb announced that she was dropping out of the show following an on-set injury earlier this week.
Splash continues on Tuesdays on ABC. The season finale airs on May 7.