Actor Ernie Reyes Jr. needs a kidney transplant, and his sister Destiny Reyes took to GoFundMe to raise $75,000 for the procedure.

The 43-year-old "Teenage Mutant Ninja Turtles II: The Secret of the Ooze" star is said to be "fighting for his life" and was recently hospitalized in the ICU for kidney failure, according to Us Weekly.

"Ernie is currently undergoing dialysis treatment 3 times per week for 4 hours a day while waiting for a kidney transplant," Destiny wrote on GoFundMe. "This is a very challenging time not only for Ernie Jr.'s immediate family, but a challenging time for our family as well."

"My brother has spent his entire childhood and adult life fighting in films and television, but now his battle has gone from the screen to reality, fighting for his life," she added.

"Regardless of where you have seen or heard of Ernie Reyes Jr., he has impacted peoples' lives all over the world through his extraordinary performances in television and film. Please be aware that he needs support during this time of need and recovery of his life."

Reyes starred in "Sidekicks" in the 1980s and the "Ninja Turtles" flick in 1991, and he also had roles in "Rush Hour 2" and "Indiana Jones and the Kingdom of the Crystal Skull."

"Much love to my sister @destikneee for starting a kidney transplant fund for me," Ernie tweeted. "I love you girl!"

He also posted on Instagram a mirror selfie showing himself shirtless and sporting a bandage, E! Online reported.

"5:15am-On my way to dialysis. #nevergiveup #motivationmonday," the actor wrote.

Despite his ailment, Ernie is still working and is set to host an event at the 2015 Battle of Atlanta Martial Arts Tournament next weekend.

Friends and fans have been showing support through social media, and since the fundraiser began on June 5, 753 people have chipped in to raise more than $37,000.

"I don't know what I would do without all your love and support," he tweeted this week. "Thank you from the bottom of my heart. #grateful."