First Aid Vocabulary for Hikers and Backpackers in English and Spanish: A Bilingual Field Guide

Looking for first aid vocabulary in Spanish for hikers and backpackers? This bilingual field guide covers 80+ essential wilderness first aid terms in English and Spanish — from basic wound care and blister treatment to emergency response, evacuation procedures, and the critical vocabulary needed when language barriers arise on the trail.

In eighteen years of leading youth outdoor trips through the backcountry of Washington State, Oregon, and Puerto Rico, I carried a first aid kit on every single outing. I also learned that knowing the vocabulary — being able to communicate clearly about an injury, describe symptoms, or instruct a bystander — can matter as much as having the right supplies. For bilingual trip leaders, wilderness guides working with Spanish-speaking groups, and Spanish-speaking hikers navigating English-language trail culture, accurate first aid terminology is not a luxury. It is a safety skill.

Spanish terms reflect standard usage across major Latin American regions. Medical vocabulary tends to be more consistent across regional dialects than everyday speech — most of these terms will be understood from Mexico to Argentina — but significant variants are noted where they exist.

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1. Wounds & Bleeding — Heridas y hemorragia

English	Español	Notes / Notas
Wound	Herida	General term for any break in the skin. Lesión is used more broadly for any injury.
Laceration	Laceración / Corte profundo	A jagged or deep cut requiring careful cleaning and often closure.
Abrasion	Abrasión / Raspón	A superficial scrape. Raspón is the everyday term across Latin America; abrasión is the clinical term.
Puncture wound	Herida punzante	A deep, narrow wound caused by a sharp object such as a thorn, nail, or spike.
Bleeding	Hemorragia / Sangrado	Sangrado is the common everyday term; hemorragia is the clinical term for significant blood loss.
Direct pressure	Presión directa	The primary technique for controlling bleeding — applying firm, continuous pressure to the wound with a clean cloth or bandage.
Tourniquet	Torniquete	A constricting device applied to a limb to stop life-threatening bleeding. Note time of application.
Wound irrigation	Irrigación de la herida / Lavado de la herida	Flushing a wound with clean water or saline to remove debris and reduce infection risk.
Infection	Infección	Signs include redness (enrojecimiento), swelling (hinchazón), warmth (calor), and pus (pus).
Blister	Ampolla	A fluid-filled bubble on the skin from friction. The most common trail injury. Prevent with proper socks and boot fit.
Moleskin	Moleskin	Soft adhesive padding applied to hot spots and blisters. The English term is used directly across Spanish-speaking outdoor communities.
Hot spot	Zona de fricción / Punto caliente	An area of skin showing early friction irritation before a blister forms. Treat immediately with moleskin.

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2. Musculoskeletal Injuries — Lesiones musculoesqueléticas

English	Español	Notes / Notas
Sprain	Esguince / Torcedura	Injury to ligaments around a joint. Esguince is the clinical term; torcedura is the everyday term across Latin America.
Strain	Distensión muscular / Tirón	Injury to a muscle or tendon from overstretching. Tirón is commonly used in everyday speech across Latin America.
Fracture	Fractura	A broken bone. In wilderness settings, assume fracture when in doubt and splint accordingly.
Dislocation	Luxación / Dislocación	A joint forced out of its normal position. Shoulder dislocations are most common in outdoor settings. Do not attempt reduction without training. Luxación is the preferred clinical term in Spain and Latin America; dislocación is an anglicism also in common use.
Splint	Férula / Entablillado	A device used to immobilize a fractured or injured limb. In the backcountry, improvised splints using trekking poles and clothing are standard.
RICE method	Método RICE / DCHE	Rest, Ice, Compression, Elevation. In Spanish: Descanso, Compresas de hielo, compresión, Elevación (DCHE). The English acronym RICE is also widely used.
Swelling	Hinchazón / Inflamación	Hinchazón is the common everyday term; inflamación is used in clinical contexts.
Muscle cramp	Calambre muscular / Calambre	A sudden, involuntary muscle contraction. Common on long hikes due to dehydration and electrolyte depletion.
Tendinitis	Tendinitis	Inflammation of a tendon from overuse. Common in the knee (rodilla) and Achilles tendon (tendón de Aquiles) among hikers.
Knee pain	Dolor de rodilla	One of the most common complaints on long descents. Trekking poles significantly reduce knee stress on downhill terrain.

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3. Environmental Emergencies — Emergencias ambientales

English	Español	Notes / Notas
Hypothermia	Hipotermia	Dangerous drop in core body temperature. Prevention through layering is critical. Early signs: shivering (escalofríos), confusion (confusión), slurred speech (habla entrecortada).
Frostbite	Congelación / Quemadura por frío	Freezing of body tissue, most commonly fingers (dedos de la mano), toes (dedos del pie), nose (nariz), and ears (orejas).
Heat exhaustion	Agotamiento por calor	Heavy sweating, weakness, and nausea from overheating. Move to shade, hydrate, and cool the patient.
Heat stroke	Golpe de calor / Insolación	Life-threatening condition where the body’s cooling system fails. Hot, dry skin and altered mental status are warning signs. This is a medical emergency requiring evacuation.
Sunburn	Quemadura solar / Quemadura de sol	UV damage to skin. Severity increases with elevation. Severe sunburn can cause systemic symptoms requiring treatment.
Altitude sickness	Mal de altura / Mal de montaña / Soroche	Soroche is the Quechua-derived term used across the Andes — Peru, Bolivia, Ecuador, Colombia. Mal de altura or mal de montaña is standard elsewhere.
Dehydration	Deshidratación	Signs include dark urine (orina oscura), dry mouth (boca seca), dizziness (mareo), and fatigue (fatiga). Prevention is the best treatment.
Lightning strike	Rayo / Descarga eléctrica	Lightning victims may require CPR. A person struck by lightning does not carry electrical charge and is safe to touch.
Anaphylaxis	Anafilaxia / Reacción alérgica grave	Severe allergic reaction — to insect stings, plant contact, or foods — requiring immediate epinephrine (adrenalina / epinefrina) if available.
Epinephrine auto-injector	Autoinyector de adrenalina / EpiPen	The brand name EpiPen is widely recognized in Spanish-speaking countries. Know how to administer it before you leave the trailhead.
Giardia	Giardia / Giardiasis	A waterborne intestinal parasite from untreated water. Symptoms appear 1–3 weeks after exposure. Prevention: always filter or treat water sources.

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4. Medical Conditions on the Trail — Afecciones médicas en el sendero

English	Español	Notes / Notas
Cardiac arrest	Paro cardíaco / Paro cardiorrespiratorio	The heart stops beating. Requires immediate CPR (RCP: Resucitación Cardiopulmonar) and evacuation.
CPR	RCP (Resucitación Cardiopulmonar)	Cardiopulmonary resuscitation. The Spanish acronym RCP is standard. Every outdoor leader should be CPR certified.
Seizure	Convulsión / Ataque epiléptico	Protect the patient from injury. Do not restrain or put anything in the mouth. Time the seizure. Evacuate if it lasts more than 5 minutes or if it’s a first-time seizure.
Diabetic emergency	Emergencia diabética	Low blood sugar (hipoglucemia) is more common in the field than high blood sugar. If the patient can swallow, give sugar (azúcar) immediately.
Asthma attack	Ataque de asma / Crisis asmática	Ensure the patient has their rescue inhaler (inhalador de rescate / broncodilatador). Cold air and exertion are common triggers on the trail.
Nausea	Náuseas	Common in altitude sickness, heat exhaustion, and dehydration. Note whether vomiting (vómitos) is also present.
Dizziness	Mareo / Vértigo	Mareo is the general term for dizziness; vértigo specifically refers to the sensation of spinning.
Headache	Dolor de cabeza / Cefalea	A common early symptom of altitude sickness, dehydration, and heat exhaustion. Cefalea is the clinical term; dolor de cabeza is everyday speech.

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5. First Aid Equipment — Equipo de primeros auxilios

English	Español	Notes / Notas
First aid kit	Botiquín de primeros auxilios	A wilderness first aid kit differs significantly from a household kit — it includes items for wound irrigation, improvised splinting, and extended care scenarios.
Bandage	Venda / Vendaje	Venda is the bandage material; vendaje is the act of bandaging or the applied dressing.
Gauze	Gasa	Sterile woven fabric used to cover and protect wounds. Carry both pads (gasas en cuadro) and rolls (gasas en rollo).
Medical tape	Esparadrapo / Cinta médica	Esparadrapo is the standard term across most of Latin America and Spain for medical adhesive tape.
Antiseptic wipes	Toallitas antisépticas	Used for cleaning wounds when water is unavailable. Note that antiseptic wipes are not a substitute for wound irrigation with clean water.
Pain reliever	Analgésico / Calmante	Ibuprofen (ibuprofeno) and acetaminophen (paracetamol / acetaminofén) are the standard trail analgesics. Aspirin (aspirina) should not be given to children.
Emergency blanket	Manta de supervivencia / Manta térmica	A reflective Mylar blanket that retains body heat. Essential for hypothermia management and emergency sheltering.
SAM splint	Férula SAM / Férula moldeable	A lightweight, moldable aluminum and foam splint. The brand name SAM splint is widely used in wilderness medicine contexts across languages.
Latex gloves	Guantes de látex / Guantes desechables	Universal precaution when treating wounds. Carry nitrile (nitrilo) gloves as an alternative for latex-allergic patients.
Irrigation syringe	Jeringa de irrigación	A syringe used to flush wounds under pressure with clean water or saline. More effective than pouring water from a bottle.

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6. Patient Assessment & Communication — Evaluación del paciente y comunicación

This section is especially important for bilingual outdoor educators and guides working with Spanish-speaking groups — being able to assess a patient across a language barrier is a critical skill.

English	Español	Notes / Notas
Where does it hurt?	¿Dónde le duele? / ¿Dónde te duele?	The single most important phrase for cross-language patient assessment. Le (formal) vs. te (informal) — use formal with strangers.
Are you allergic to any medications?	¿Es alérgico/a a algún medicamento?	Essential before administering any medication. Ask about penicillin (penicilina), aspirin (aspirina), and latex (látex) specifically.
On a scale of 1 to 10, how bad is the pain?	En una escala del 1 al 10, ¿qué tan fuerte es el dolor?	The numeric pain scale works across language barriers — hold up fingers if needed.
Can you move your fingers / toes?	¿Puede mover los dedos de la mano / del pie?	Assesses nerve function and circulation distal to an injury. Critical for fracture and dislocation assessment.
Do you have any medical conditions?	¿Tiene alguna condición médica? / ¿Padece de alguna enfermedad?	Padece de (to suffer from / to have) is the more natural phrasing in Latin American Spanish for asking about chronic conditions.
Are you taking any medications?	¿Está tomando algún medicamento?	Some medications (blood thinners, beta-blockers, insulin) significantly affect treatment decisions in the field.
SAMPLE history	Historia SAMPLE	Signs/Symptoms (Signos/Síntomas), Allergies (Alergias), Medications (Medicamentos), Pertinent history (antecedentes), Last oral intake (Última ingesta), Events leading to injury (Eventos previos). The SAMPLE acronym works in both languages.
Stay still / Don’t move	Quédese quieto/a / No se mueva	Critical instruction for spinal injury suspicion. Speak calmly and clearly.
Help is on the way	La ayuda está en camino / El socorro ya viene	One of the most reassuring phrases you can offer a distressed patient while awaiting evacuation.

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7. Evacuation & Rescue — Evacuación y rescate

English	Español	Notes / Notas
Search and rescue (SAR)	Búsqueda y rescate / SAR	The acronym SAR is used directly in Spanish-language emergency management. Know how to contact SAR in your specific area before you leave the trailhead.
Evacuation	Evacuación	The process of moving an injured or ill patient from the field to definitive medical care. May be self-evacuation (autoevacuación) or assisted evacuation (evacuación asistida).
Litter / Stretcher	Camilla	A device for carrying a patient. In wilderness settings, improvised litters from trekking poles and sleeping pads are standard when a commercial litter is unavailable.
Helicopter evacuation	Evacuación en helicóptero / Helievacuación	Know the international distress signal for ground-to-air communication: both arms raised in a Y shape means “Yes, I need help.”
Personal locator beacon (PLB)	Radiobaliza personal / Baliza de localización personal	A one-way emergency device that transmits a distress signal to rescue satellites. Every backcountry group should carry one.
Emergency contact	Contacto de emergencia	A person designated to receive notification and coordinate response if a party fails to return from the trail. Always leave trip plans with an emergency contact.
Triage	Triaje	The process of prioritizing treatment among multiple patients by severity. In a mass casualty event on the trail, triage determines who receives care first.
Urgent evacuation	Evacuación urgente	Required when a patient’s condition will deteriorate significantly without rapid access to medical care — cardiac events, severe bleeding, altered mental status.

Sources Consulted / Fuentes consultadas

The terminology in this glossary was verified against the following professional references:

• NOLS Wilderness Medicine, 7th Edition (Tilton, 2023) — the authoritative wilderness medicine field textbook, used as the primary source for patient assessment terminology, SAMPLE history, and evacuation protocols.
• Primeros Auxilios en Lugares Remotos, 6th Edition — the official Spanish-language wilderness first aid textbook published by Jones & Bartlett Learning, used to verify all Spanish medical terminology.
• NOLS Wilderness Medicine Course Materials en Español (nols.edu) — active Spanish-language WFR course content from NOLS Chile, used to verify institutional Spanish terminology.
• Real Academia Española — Diccionario de la lengua española (dle.rae.es) — the authoritative Spanish dictionary, used to verify clinical medical terminology.
• Linguee English-Spanish Medical Corpus (linguee.com) — corpus-based verification of Spanish terminology in professional medical translation contexts.
• American Red Cross Standard First Aid Curriculum — cross-reference for shared terminology between standard and wilderness first aid contexts.

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