Sinta underwent a medical check-up on February 18, 2026. The examination was conducted on five individual orangutans: Sinta and her infant Sabine, Jamilah and her infant Ulin, as well as Benazir.

Based on the examination results, all individuals were declared healthy and in stable condition. They underwent a comprehensive series of health assessments, including complete blood tests and screening for infectious diseases such as tuberculosis (TB), HIV, and hepatitis B. These examinations are mandatory standard procedures prior to release, ensuring that each orangutan is fully prepared to return to their natural habitat without posing health risks to themselves or the wild population.

After completing the entire testing process, Sinta, Sabine, and the other individuals were placed in isolation enclosures as part of the continued observation protocol. This isolation period is intended to monitor their final health condition prior to departure.

Sinta and Sabine, together with Jamilah and Ulin, as well as Benazir, are scheduled to become the next release candidates in April 2026.

During her rehabilitation process at Jerora Forest School, Sinta has demonstrated remarkable progress. With a total of 471 hours of observation, she has identified 26 types of natural forest foods. In addition, Sinta has mastered 12 types of locomotion techniques, reflecting her ability to move actively and efficiently through the forest canopy.

Moreover, Sinta has been observed building new nests and renovating old ones on several occasions. This ability is a crucial indicator of an orangutan’s readiness for survival in the wild, as nests serve as resting places as well as protection from weather and potential predators.

Considering these achievements, Sinta is showing increasing readiness to return to the forest, alongside Sabine, who continues to learn and develop under her mother’s guidance. This process marks an important step toward the final phase of rehabilitation—returning to the wild as an independent individual.