"It is wonderful to win a medal. It (winning a medal) becomes prestigious in World Championship or Olympics. I am lucky to have won a silver in 2015 and a bronze in 2017," Saina told PTI in an interview.
"I liked the medal (more) as it came after I met with a career-threatening injury," added the 27-year-old, who had to undergo a knee surgery after crashing out of the Rio Olympics early do to a serious injury.
"(In September last year) after major ortho surgery for a week, physios Chandan Poddar and Arvind Nigam helped me; then my coach Vimal sir helped me slowly to come to the position where I am," she said.
Despite not being fully fit, Saina tried to defend her title at China Open but she lost in the first round in November last yesterday.
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"I played tournament in November in China and lost in the first round. But soon I recovered well and played Macau Open and Hong Kong Open a week later and reached QF (Quarter Finals) of both the tournaments.
Saina said she was confident of winning a medal at Glasgow as she had better records against World No. 3 Sung Ji Hyun, Scotland's Kristy Gilmour and also Japan's Nozomi Okuhara, who finally won the Gold medal.
The Indian said she could have defeated Okuhara in the semifinals had the matches been scheduled properly.
"I was sure to win a medal at Glasgow, I defeated Sung and my record is 7-2, I defeated Kristy in quarters, a young player from host country, and the win was satisfying.
"If scheduling is done properly, the player who played a big match in the late previous evening, might get some rest. I hope I will work on this issue in future too," she said.
Talking about her future events, Saina said: "I may miss Korea open and may play Japan open."
Saina also said international badminton matches have become more competitive and their duration have increased compared to earlier times.