How old was Michael Jackson when he got first plastic surgery?

Michael had his first plastic surgery in 1979 when he was practicing a spin and he fell on his face and broke his nose, he had to have it fixed and in the process requested that it also be made a bit smaller. A few years later, he was having some breathing complications from that previous surgery so he had to have the inside reconstructed, and in the process once again asked to have it made smaller.