IntroductionCertain doubts about immersion in water during birth mainly regarding the safety of the infant, warrant analysis of the data to determine whether immersion in water during childbirth is safe and effective. The aim is to describe the situation regarding the use of water immersion during childbirth in hospitals of the Spanish National Health System across Spanish Autonomous Regions and Cities.MethodsA questionnaire was developed to assess the use of water immersion on maternity wards of National Health System hospitals. The survey was reviewed by several categories of health professionals and stakeholders. The online questionnaire was distributed via email. A database was created using the Microsoft Excel 365® computer program. Quantitative results were described through percentages and frequency distributions. In the case of free responses, a content analysis was performed, coding the responses into different categories.ResultsRegarding the status of water birth in Spain, the availability of the option of water birth varies across hospitals of the National Health System. Forty-six hospitals in 13 autonomous regions indicated that they had birthing pools on their delivery wards. Among these hospitals, 20 percent reported having more than 10 years of experience in water births, 45 percent between five and 10 years and 35 percent less than five years. Of the 46 responses received, 78 percent of the hospitals indicated that there was a demand for information on waterbirth by pregnant women. Regarding the existence of criteria for the adequate selection of pregnant women who could opt for immersion in water during childbirth, 89 percent of the hospitals indicated that these did exist, while 11 percent indicated that they did not have agreed criteria for the selection of candidates for water birth.ConclusionsThe availability of the option of water birth varies in hospitals across the Spanish National System. All the hospitals that have birthing pools offer them in the first stage of labor (dilation), while 32 percent also use them in the pushing stage and 15 percent during delivery of the placenta. It would be advisable to have standardized protocols and training to ensure the possibility that all pregnant women, regardless of their place of residence, can safely opt for water immersion during childbirth with satisfactory results.