diff --git a/1.sources/MyHealth/src/ejb/systemAdmin/SystemAdminFacadeBean.java b/1.sources/MyHealth/src/ejb/systemAdmin/SystemAdminFacadeBean.java
index 9112b28..2f185b4 100644
--- a/1.sources/MyHealth/src/ejb/systemAdmin/SystemAdminFacadeBean.java
+++ b/1.sources/MyHealth/src/ejb/systemAdmin/SystemAdminFacadeBean.java
@@ -1,9 +1,12 @@
 package ejb.systemAdmin;
 
+import java.util.List;
+
 import javax.ejb.EJB;
 import javax.ejb.Stateless;
 import javax.persistence.EntityManager;
 import javax.persistence.PersistenceContext;
+import javax.persistence.TypedQuery;
 
 import TO.FamilyDoctorTO;
 import TO.LoggedUserTO;
@@ -105,7 +108,7 @@ public class SystemAdminFacadeBean implements SystemAdminFacadeRemote {
 	}
 
 	@Override
-	public MedicalSpecialtyTO updateSpecialtyData(int id, String name, String description) throws Exception {
+	public MedicalSpecialtyTO getSpecialty(int id, String name, String description) throws Exception {
 		MedicalSpecialtyJPA ms = entman.find(MedicalSpecialtyJPA.class, id);
 
 		if (ms == null) {
@@ -120,8 +123,20 @@ public class SystemAdminFacadeBean implements SystemAdminFacadeRemote {
 		return this.commonServices.getPOJOforMedicalSpecialtyJPA(ms);
 	}
 
+	public MedicalSpecialtyTO findSpecialtyByName(String searchedName) {
+		TypedQuery<MedicalSpecialtyJPA> query = entman.createQuery("from MedicalSpecialtyJPA ms where ms.name=:name", MedicalSpecialtyJPA.class);
+		query.setMaxResults(1);
+		query.setParameter("name", searchedName);
+
+		List<MedicalSpecialtyJPA> results = query.getResultList();
+		if (results.size() > 0)
+			return this.commonServices.getPOJOforMedicalSpecialtyJPA(results.get(0));
+		else
+			return null;
+	}
+
 	@Override
-	public void deleteSpecialtyData(int id, String name, String description) throws Exception {
+	public void deleteSpecialty(int id, String name, String description) throws Exception {
 		MedicalSpecialtyJPA ms = entman.find(MedicalSpecialtyJPA.class, id);
 
 		if (ms == null) {
@@ -132,7 +147,7 @@ public class SystemAdminFacadeBean implements SystemAdminFacadeRemote {
 	}
 
 	@Override
-	public MedicalSpecialtyTO insertSpecialtyData(String name, String description) throws Exception {
+	public MedicalSpecialtyTO insertSpecialty(String name, String description) throws Exception {
 
 		MedicalSpecialtyJPA ms = new MedicalSpecialtyJPA(name, description);
 		entman.persist(ms);
diff --git a/1.sources/MyHealth/src/ejb/systemAdmin/SystemAdminFacadeRemote.java b/1.sources/MyHealth/src/ejb/systemAdmin/SystemAdminFacadeRemote.java
index f4ab02d..3493b28 100644
--- a/1.sources/MyHealth/src/ejb/systemAdmin/SystemAdminFacadeRemote.java
+++ b/1.sources/MyHealth/src/ejb/systemAdmin/SystemAdminFacadeRemote.java
@@ -4,6 +4,7 @@ import javax.ejb.Remote;
 
 import TO.LoggedUserTO;
 import TO.MedicalSpecialtyTO;
+import TO.PatientTO;
 
 /**
  * 
@@ -18,9 +19,11 @@ public interface SystemAdminFacadeRemote {
 
 	public LoggedUserTO login(String id, String pwd);
 	
-	public MedicalSpecialtyTO updateSpecialtyData(int id, String name, String description) throws Exception;
+	public MedicalSpecialtyTO getSpecialty(int id, String name, String description) throws Exception;
 	
-	public void deleteSpecialtyData(int id, String name, String description) throws Exception;
+	public MedicalSpecialtyTO findSpecialtyByName(String name);
 	
-	public MedicalSpecialtyTO insertSpecialtyData(String name, String description) throws Exception;
+	public void deleteSpecialty(int id, String name, String description) throws Exception;
+	
+	public MedicalSpecialtyTO insertSpecialty(String name, String description) throws Exception;
 }
\ No newline at end of file
diff --git a/1.sources/MyHealth/src/managedbean/systemAdmin/ManageSpecialitiesMBean.java b/1.sources/MyHealth/src/managedbean/systemAdmin/ManageSpecialitiesMBean.java
index f079867..9f9a948 100644
--- a/1.sources/MyHealth/src/managedbean/systemAdmin/ManageSpecialitiesMBean.java
+++ b/1.sources/MyHealth/src/managedbean/systemAdmin/ManageSpecialitiesMBean.java
@@ -7,12 +7,14 @@ import javax.annotation.PostConstruct;
 import javax.enterprise.context.RequestScoped;
 import javax.faces.application.FacesMessage;
 import javax.inject.Named;
+import javax.persistence.PersistenceException;
 
 import TO.LoggedUserTO;
 import TO.MedicalSpecialtyTO;
 import common.Constants;
 import managedbean.common.ManagedBeanBase;
 import managedbean.common.SessionUtils;
+import managedbean.common.ValidationUtils;
 
 @Named("ManageSpecialities")
 @RequestScoped
@@ -106,7 +108,7 @@ public class ManageSpecialitiesMBean extends ManagedBeanBase implements Serializ
 
 		if (error == 0) {
 			try {
-				MedicalSpecialtyTO ms = this.getRemoteManagerSystemAdmin().updateSpecialtyData(this.medicalSpecialty.getId(), this.medicalSpecialty.getName(), this.medicalSpecialty.getDescription());
+				MedicalSpecialtyTO ms = this.getRemoteManagerSystemAdmin().getSpecialty(this.medicalSpecialty.getId(), this.medicalSpecialty.getName(), this.medicalSpecialty.getDescription());
 				this.setSpecialtyData(ms);
 				this.addFacesMessage(FacesMessage.SEVERITY_INFO, "Los datos se han guardado", "Los datos de la especialidad se han guardado correctamente.");
 				this.medicalSpecialitiesList = this.getRemoteManagerCommon().listMedicalSpecialitiesPaged(0, Constants.MAX_ITEMS_AUTOCOMPLETE_SEARCH);
@@ -130,7 +132,7 @@ public class ManageSpecialitiesMBean extends ManagedBeanBase implements Serializ
 
 		if (error == 0) {
 			try {
-				this.getRemoteManagerSystemAdmin().deleteSpecialtyData(this.medicalSpecialty.getId(), this.medicalSpecialty.getName(), this.medicalSpecialty.getDescription());
+				this.getRemoteManagerSystemAdmin().deleteSpecialty(this.medicalSpecialty.getId(), this.medicalSpecialty.getName(), this.medicalSpecialty.getDescription());
 				this.addFacesMessage(FacesMessage.SEVERITY_INFO, "Los especialidad se ha borrado", "Los datos de la especialidad se han borrado correctamente.");
 				this.medicalSpecialitiesList = this.getRemoteManagerCommon().listMedicalSpecialitiesPaged(0, Constants.MAX_ITEMS_AUTOCOMPLETE_SEARCH);
 			} catch (Exception e) {
@@ -150,10 +152,15 @@ public class ManageSpecialitiesMBean extends ManagedBeanBase implements Serializ
 			this.addFacesMessage(FacesMessage.SEVERITY_WARN, "Descripción no rellena", "Por favor, escriba una descripción.");
 			error++;
 		}
-
+		
+		if (this.getRemoteManagerSystemAdmin().findSpecialtyByName(name) != null) {
+			this.addFacesMessage(FacesMessage.SEVERITY_WARN, "Especialidad ya existente", "La especialidad ya se encuentra en la base de datos");
+			error++;
+		}
+		
 		if (error == 0) {
 			try {
-				MedicalSpecialtyTO ms = this.getRemoteManagerSystemAdmin().insertSpecialtyData(name, description);
+				MedicalSpecialtyTO ms = this.getRemoteManagerSystemAdmin().insertSpecialty(name, description);
 				this.setSpecialtyData(ms);
 				this.addFacesMessage(FacesMessage.SEVERITY_INFO, "Los datos se han guardado", "Los datos de la especialidad se han guardado correctamente.");
 				this.medicalSpecialitiesList = this.getRemoteManagerCommon().listMedicalSpecialitiesPaged(0, Constants.MAX_ITEMS_AUTOCOMPLETE_SEARCH);