They told the High Court in Mumbai (Bombay) that doctors had advised him to stay at home after the operation.
Khan had his bail cancelled on Monday for failing to show up at his trial for poaching in Jodhpur in Rajasthan state.
The High Court was more sympathetic and gave Khan until 20 December to attend court in Jodhpur, or face arrest.
'Hair-weaving'
Many Bollywood actors undergo cosmetic surgery to make themselves look younger, but few are willing to talk about operations openly or admit to having them done.
Lawyer Dipesh Mehta |
Khan's lawyer, Dipesh Mehta, said this was the first time the actor had had hair implants.
"Salman Khan had just returned from Dubai and undergone hair-weaving treatment," he told the BBC. "He was also suffering from flu and not feeling well."
Mr Mehta said he had sent a doctor's certificate to the court in Jodhpur explaining why his client would be absent on 12 December.
"However, the judge did not take it kindly and issued a warrant in his name.
"Mr Khan and I will now go to Jodhpur on 20 December, say sorry to the judge and request for the warrant to be cancelled."




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