Another developed a sperm granuloma, which is basically a lump of sperm outside the vas deferens that could become painful.

一个患上子肉芽肿，这基本上是输外的一团子，可能会变得疼痛。

Some were given a traditional vasectomy, others an injection of the new material and the rest injected with saline, as a control.

一些老鼠接受传统的输扎术，一些新材料，其余的生理盐水作为对照。

But the procedure is largely irreversible: it involves stopping the flow of sperm from the testes by cutting conduits known as the vas deferens and sealing them or tying them off.

它包括通过切割被称为输的道来阻止子从睾丸流出，并将它们密封或打。

But the researchers looked at other rhesus monkey health data they had collected, too, and found that sperm granulomas seemed to be more common in monkeys with vasectomies than in the group with Vasalgel.

但研究人员也查看他们收集的其他恒河猴健康数据，发现子肉芽肿似乎在接受输切除术的猴子中比接受 Vasalgel 的猴子更常见。