The Zapatistas maintain a universal healthcare service which is provided free of charge. However, patients still have to pay for medications to cover restocking costs. The Zapatistas built two new hospitals and 18 health clinics in the region by the mid-1990s.One 2014 study indicated the following achievements in Zapatista healthcare:

In 2005, 84.2% of Zapatista children were fully vaccinated, while that figure stood at 74.8% in pro-government communities. In regions where there were previously significantly high rates of death during childbirth, there has now been a period of eight years or more where no maternal deaths have been recorded.

The manufacture and consumption of alcohol has been banned, which is directly linked to the reduction in many illnesses and infections including ulcers, cirrhosis, malnutrition, and surgical wounds. Banning the consumption of alcohol was a collective decision. Nayely, a Zapatista representative, stated that alcohol is “not good for one’s health, and just wastes money”.

According to one account of Oventic from 2016:

In Oventic, there was a small yet seemingly fully-functional medical clinic, which appeared to offer basic healthcare. A sign on the door said general consultations, gynecology, optometry and laboratory services were all available five days a week. Emergency services were available 24 hours, seven days a week. They appeared to have a shiny new ambulance at their disposal. Other services offered a few days a week included dentistry and ultrasounds.

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