Any laying hen can develop reproductive problems. I think that the consensus seems to be that hatchery birds and birds that are bred for prolific laying have a higher percentage of reproductive problems over all. In my personal experience, my heritage breed birds have had much less percentage, over all, of these problems, but they still can happen. Buying heritage breeds from breeders who breed for health and longevity rather than prolific laying can help, but it's not a 100% guarantee, and some hatchery birds can and do live quite long lives. This thread, and video discusses reproductive problems and some of those issues also, there are graphic images at the beginning, then just info: https://www.backyardchickens.com/th...e-video-graphic-photos.1201052/#post-19020612