But after a crackdown on the international smuggling routes that once offered a dangerous -- but viable -- escape route, she now sees no way out.
"We have no idea how many years we will have to live like this," the 40-year-old widow told AFP inside the tiny bamboo hut she shares with her son, tugging nervously at her purple headscarf.
"Our lives are worse than animals... We are human only in name."
For years human traffickers cashed in on the group's desperation, ferrying thousands of Rohingya across the Andaman Sea to countries like Thailand, Indonesia and Malaysia.
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That route was shuttered by Thailand's junta in 2015 and few boats have left the camps since, according to residents, aid workers and migration experts.
While a Bangkok court rules today on the fate of more than 100 people arrested for running the trafficking network, she will spend another day distributing food rations in the camp.
Hla Hla Sein and her son had tried to escape to Malaysia before the crackdown, but their boat was so overcrowded it started to sink a few hours into the journey, forcing the captain to turn back.
It was only after they returned to shore that she found out the smugglers had planned to sell them as slaves at their destination.
Buddhist-majority Myanmar has long been chastised for its treatment of the Rohingya, a group of more than a million Muslims whose rights and freedoms have been successively stripped away since the early 1980s.
Over the past five years almost 170,000 have fled the country, according to the UN's refugee agency, leaving many families split across borders.
"It's impossible to go to Malaysia by boat nowadays," said a Rohingya camp leader, asking not to be named. "We do not want people to die at sea."
But Bangladesh plays an unwilling host to the minority and traffickers there are believed to now be smuggling Rohingya by road and air as far afield as Saudi Arabia, India, Nepal and Pakistan.
For those left behind in Myanmar's camps, escape is no longer an option.
"We are suffering," said Hla Hla Sein. "We are not supposed to stay like this forever.
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