The star, whose real name is Michael Ray Stevenson, posted a series of selfies from a hospital bed, with a surgical mask covering half of his face.
In the first, Tyga has added a crying emoji alongside another emoji with a thermometer in its mouth, while in the second he thanks doctors for helping him.
He wrote: "Thank you to the doctors in Abu Dhabi for treating me with the best care."
The rapper didn't divulge exactly why he was in hospital or why he required medical attention.
He's recently been touring, having performed in Saudi Arabia on Saturday night.
According to The Times of India, he suggested he wasn't feeling well while on stage in Mumbai on Friday - telling the crowd he wouldn't let being 'under the weather' ruin things.
Tyga reportedly said: "This is my first time in Mumbai, and I just love it here. I am a bit under the weather, but I thought to myself that this is my first gig in Mumbai and I cannot cancel it for my fans' sake.
"And you know what? It's totally worth coming all the way from Los Angeles and performing for you all."
This year has been a big one for Tyga, with many saying his work over the past year or so has marked a triumphant return to the mainstream music spotlight.
In an interview with Variety back in June, the rapper was asked how he felt to have the 'comeback of the year', to which he responded: "I never said it. If people feel that way, that's cool. That goes to show everything I'm doing is finally getting noticed, which is good.
"I just want to keep collaborating with different artists, keep doing new music."
Tyga also discussed what he's learned since becoming a father, having had a son with ex-girlfriend Blac Chyna in 2012.
"Every day you learn something new," he said.
"Having a kid with technology, it's way different. They're very advanced. It's not like when I was growing up and my mom was raising me.
"It's different now, they're exposed to so many things. They know the new songs, they're like your friends almost in a way.
"It's a good experience though. My son is cool, he's pretty chill. He's not too spoiled, he's not too crazy. He knows my limit, so he doesn't do too much to make me mad to where I have to punish him. He's pretty aware and smart."