The aim of the study was to perform a phenotypic and genetic analysis of the possibility of using the number of crushing piglets in the genetic evaluation of pigs based on available data from KU. The data contained information on 11,481 farrowings from sows collected between 2014 and 2025. Only data from sows of the Czech Large White (CLW) and Czech Landrace (CLA) breeds were included in further analyses. The trait evaluated was the number of piglets crushed. The trait was evaluated in three alternatives. PZSo – as the actual number of piglets crushed in each litter, PZSb – as a binary expression of crushed piglets within each litter (yes = 1/no = 0), PZSs – expressed as a percentage loss from the number of live-born piglets. The trait was also evaluated separately as a manifestation at the first farrowing and separately at the second and subsequent farrowings. The following were selected as effects with a demonstrable influence on the trait: dam breed (CLW or CLA), sire breed (CLW or CLA), herd-year-farrowing period, farrowing order, number of live, and number of reared piglets. Of the total number of farrowings in the monitored period, almost half were litters with crushing. Of all the sows evaluated, crushing occurred in almost sixty percent of them. If we were to evaluate only litters with piglet crushing, the proportion of crushed piglets would exceed ten percent of all live-born piglets. In 41.96% of sows, crushing occurred in more than one litter. In the monitored sample, one or two crushed piglets per litter accounted for 89% of all crushed piglets. The number of crushed piglets gradually decreased depending on the order of farrowing from the first to the third, then increased again. Depending on the trait alternative evaluated, heritability ranged from 3.2% for the number of piglets crushed expressed as a proportion of losses to 5.1% for the model that evaluated the original number of piglets crushed using the effect of the mother’s permanent environment. Furthermore, genetic analysis revealed that there is a genetic difference between the number of piglets crushed at the first farrowing and at the second and subsequent farrowings, where the genetic correlation between the aforementioned traits was only 45%. The results of this study suggest that it is possible to reduce the frequency of piglets being crushed by sows through genetic selection. The rate of genetic progress will also depend on the weight of this trait in the economic index. Although genetics explains only a small part of the variability in crushing, the economic benefit of reducing the average crushing rate in herds can be very significant.