The Anston cycling star fell during a training ride in Denmark and had to return home for scans on the shoulder.
He that an MRI scan had shown there was nothing broken and the shoulder had been dislocated but popped back in.
Swift said on Twitter: “Well the good news is that nothing is broken, just a dislocation which went back in.”
“Have anther MRI scan next week once the swelling has gone down.”
Although the injury could cost Swift a place in this summer’s London Olympics, he was in a positive mood this week as he began to get treatment on his shoulder and returned to the turbo trainer, a static cycling machine.
He added: “I have been getting back on the turbo which was quite painful at the start, but the more movement I am getting through my shoulder and glut, the better it becomes.”
“I would like to thank my family and girlfriend Lizi for their support, and a special thank you must go to Chris Pritchard of CPT Therapy who has been helping me to recover.”
Team Sky replaced the 24-year-old with veteran Jeremy Hunt for the Giro d’Italia.