Injuries are not rare and cluster predictably
Shoulders, wrists, hamstrings, lower back, necks.
Injury in this practice is real, reasonably common, and concentrated in identifiable places. Shoulders and wrists from weight-bearing positions performed with poor mechanics or excessive repetition. Hamstring attachment strains from repeated aggressive forward folding. Lower backs from deep bending without adequate control. Necks from positions placing load on the cervical spine.
The pattern in most cases is not a single event but accumulation: a position performed slightly wrong, repeatedly, over months. That means the injury arrives without an obvious cause and is frequently attributed to something else.
The populations most at risk are the very flexible, who can reach positions their tissue cannot support and receive no warning sensation, and the newly enthusiastic, who progress faster than tissue adapts. Neither group is typically identified as being at risk.
The general protections are unremarkable: progress slowly, treat sharp or joint-line sensation as a stop signal rather than a challenge, avoid loading the neck, and be sceptical of any instruction to push through discomfort.
There is a specific risk pattern worth naming for people returning after time away. Somebody who practised regularly years ago will attempt what they used to do, and tissue does not retain that capacity. Returning at the level you left is one of the more common routes to injury and it feels entirely reasonable at the time.