The 29-year-old left-handed batsman withdrew from the upcoming ODI series against the West Indies after revealing that he is being treated for a tumour in his left lung.
After his mother Shabnam made the revelation in a formal statement yesterday, Yuvraj tweeted that he would be returning sooner rather than later.
"Overwhelmed with ur love n support. I am absolutely fine, just need to get match fitness and training will be back soon," he tweeted.
Yuvraj has been troubled by health issues since the World Cup, which India won, and has played just one Test match in England after that.
"Reports and scans then showed us that Yuvraj was dealing with something really serious. A golf-ball size lump was found over his left lung and doctors advised us to go in for more detailed scans."
"The initial reports suggested that Yuvraj had what in medical terms, is called a abnormal tumour called lymphoma over his left lung. The danger was, we were told, that it could be malignant," Shabnam had stated.
"When he returned from England... detailed scanning, and biopsy reports indicated that the tumour is non-malignant and non-threatening and can be treated through proper medication and therapy. In medical terms, Yuvraj is now in a much better state and on his way to a full recovery," Yuvraj's mother Shabnam said in a statement.
Shabnam further said Yuvraj did not want to rush his return to the side and that's why he informed BCCI about his unavailability for the West Indies series.
"Now his entire focus is to re-gain his full fitness. He is already preparing himself to play the One Day series in Australia. He doesn't want to rush things, he wants to be hundred percent fit before resuming his cricket for India."