Anscombe has been out since December with a groin injury which was the latest issue to sideline the New Zealand-born outside-half.
The 25-year-old has also suffered hip and ankle injuries since arriving at the Blues.
"You start getting bracketed as being made out of glass," he said.
Anscombe has been limited to 33 appearances for the Blues since joining in the autumn of 2014.
"Traditionally I've never had problems with injuries," said Anscombe.
"Coming from New Zealand, I played Super Rugby, ITM Cup and then finished the Cardiff Blues' season.
"I don't know if my body was angry at me for doing that or something, because it just seemed to catch up with me."
Anscombe has made nine Wales appearances and has a dual contract with the Blues and the Welsh Rugby Union that finishes at the end of the current season.
He has been overtaken in the international pecking order by Sam Davies and Owen Williams, behind Dan Biggar but still believes he can play at international level.
"It's been frustrating and disappointing," he added.
"It's tough when you think you are good enough to play at that Test level, but I just haven't had enough games.
"I guess everyone's got their doubts, but you've just got to keep competitive and believe in what you can do,
"You have got to have that self-belief and earn the jersey.
"There are a couple of guys there that have been playing well for a while now and deserve to be where they are, so Wales are in a lucky situation there.
"If I play well for the Blues and they start winning, hopefully people recognise you again."
Anscombe returned last month in the Challenge Cup match against Bristol and is in line to play against Connacht at the Arms Park on Sunday afternoon.
"If I can have a big second part of the season, then we will see what happens," he said.
"It's nice to be back in the Blues jersey.
"We really need to start winning and we have got belief in the squad that we can do it."

In return Venezuela accused Chile of "inadmissible interventionism" and a "lack of diplomatic circumspection".
Braulio Jatar was taken into custody on 3 September after publishing videos of a protest against Venezuelan President Nicolas Maduro.
Mr Jatar was born in Chile and also has Venezuelan nationality.
He is an open supporter of the opposition and runs a news website on Margarita island in Venezuela.
The Committee to Protect Journalists, a New York-based pressure group, called on Venezuela to "allow all journalists to report freely".
On Monday. Brazil's foreign minister also criticised the Venezuelan government's actions, saying the country had seen an increase in what he called "arbitrary detentions".
Jose Serra told a local newspaper such detentions "make it even more difficult to have the dialogue between government and opposition that is indispensable for overcoming the dramatic political, economic, social and humanitarian crisis that is affecting Venezuela".
At the start of September, Mr Jatar released videos of a protest when island residents jeered the president.
Protests have been a regular occurrence in Venezuela as the opposition calls for President Maduro to be removed from power. They blame him for the country's economic crisis and accuse the electoral commission of delaying a referendum that could shorten his rule.
President Maduro accuses the opposition of trying to stage a coup.
Mr Jatar was arrested with about 30 other people on Margarita island. The others have since been released but Mr Jatar is still in detention and his family believe he is not on the island any more.
Some reports said the authorities claimed he had tens of thousands of dollars in cash, which was to be used to attack an international summit starting on Margarita island on Tuesday.
Venezuelan prosecutors have not commented on the detention but the foreign ministry said he was suspected of extortion and fraud.
Chile demanded at the weekend that Venezuela make the journalist's whereabouts known.
The Venezuelan government said it "rejected" the demand and accused the Chilean foreign minister of "bowing to pressure from the most reactionary sections of the bourgeoisie" who still support General Pinochet, the country's former right-wing dictator.
Chile's response was to say that "the promotion and defence of human rights do not have borders" and Mr Jatar had not had access to his lawyer in a week.
Cardiff Blues outside-half Gareth Anscombe hopes to put his injury problems behind him and achieve Wales recognition again.
[NEXT_CONCEPT]
The government of Chile has demanded that Venezuela "immediately" disclose the location of a journalist who was detained earlier this month.