Medical Terminology in Spanish: 100 Common Terms by Body System

Directed and reviewed by a family medicine physician & certified medical interpreter

Medical Spanish is easier to learn by body system than from an alphabetical list. Terms in the same system connect to each other, and you can practice them in the encounters where you actually use them. Below are 100 common medical terms in Spanish, organized by system, with the everyday word patients often use when it differs from the technical one.

The Spanish is neutral Latin American usage. Regional words vary, so listen for what your patients say and use their word back when it is clear. For anything beyond routine communication, such as consent, a new diagnosis or medication teaching, use a qualified medical interpreter.

General and vital signs

English Spanish (technical) What patients often say
Blood pressure Presión arterial La presión
Heart rate / pulse Frecuencia cardíaca / pulso El pulso
Temperature Temperatura La temperatura
Fever Fiebre Calentura
Weight / height Peso / estatura Peso / altura
Oxygen level Saturación de oxígeno El oxígeno
Allergy Alergia Alergia
Symptom Síntoma Molestia
Swelling Edema, inflamación Hinchazón
Fatigue Fatiga, cansancio Cansancio

Cardiovascular

English Spanish (technical) What patients often say
Heart attack Infarto de miocardio Ataque al corazón, infarto
High blood pressure Hipertensión Presión alta
Chest pain Dolor torácico Dolor de pecho
Palpitations Palpitaciones Se me acelera el corazón
Heart failure Insuficiencia cardíaca El corazón débil
Irregular heartbeat Arritmia El corazón me brinca
Blood clot Coágulo, trombo Coágulo
Blood thinner Anticoagulante Medicina para adelgazar la sangre
Cholesterol Colesterol Colesterol
Stroke Accidente cerebrovascular (ACV) Derrame cerebral, embolia

Respiratory

English Spanish (technical) What patients often say
Shortness of breath Disnea Me falta el aire
Cough Tos Tos
Phlegm / sputum Esputo Flema
Wheezing Sibilancias Me silba el pecho
Asthma Asma Asma
Pneumonia Neumonía Pulmonía
Inhaler Inhalador La bombita
Lungs Pulmones Pulmones
Chronic obstructive pulmonary disease Enfermedad pulmonar obstructiva crónica (EPOC) EPOC, enfisema (enfisema is one type, so confirm)
Cold (illness) Resfriado Gripa, catarro, estar constipado

Digestive

English Spanish (technical) What patients often say
Abdomen Abdomen Panza, barriga, estómago
Nausea Náuseas Ganas de vomitar, asco (in parts of Mexico)
Vomiting Vómito Vómito, devolver
Diarrhea Diarrea Diarrea, estar suelto
Constipation Estreñimiento Estar estreñido
Heartburn Pirosis Agruras, acidez
Stool Heces Popó, excremento
Liver Hígado Hígado
Gallbladder Vesícula biliar La vesícula, la hiel
Appendicitis Apendicitis Apendicitis

Endocrine, metabolic and kidney

English Spanish (technical) What patients often say
Diabetes Diabetes Azúcar, tengo el azúcar
Blood sugar Glucosa en sangre El azúcar
Low blood sugar Hipoglucemia Se me bajó el azúcar
High blood sugar Hiperglucemia Azúcar alta
Insulin Insulina Insulina
Thyroid Tiroides Tiroides
Hemoglobin A1c Hemoglobina glucosilada (A1c) La prueba del azúcar de tres meses
Kidney Riñón Riñón
Dialysis Diálisis Diálisis
Thirst Sed Mucha sed

Note: many patients say "tengo el azúcar" to mean they have diabetes. Use the patient's phrase back when it helps them understand, and note "diabetes" clearly in the record.

Neurological

English Spanish (technical) What patients often say
Headache Cefalea Dolor de cabeza
Dizziness Mareo, vértigo Mareo
Fainting Síncope Desmayo
Seizure Convulsión Ataque
Numbness Entumecimiento Se me duerme
Tingling Parestesia Hormigueo
Weakness Debilidad No tengo fuerza
Confusion Confusión Está desorientado
Memory loss Pérdida de memoria Se le olvidan las cosas
Slurred speech Disartria Arrastra las palabras

Musculoskeletal and skin

English Spanish (technical) What patients often say
Fracture Fractura Hueso roto, quebradura
Sprain Esguince Torcedura
Joint Articulación Coyuntura
Back pain Dorsalgia; lumbalgia (low back) Dolor de espalda, dolor de cintura (low back)
Arthritis Artritis Reumas
Rash Erupción, exantema Ronchas, salpullido
Wound Herida Herida, cortada
Bruise Hematoma, contusión Moretón
Itching Prurito Comezón
Burn Quemadura Quemada

Urinary and reproductive

English Spanish (technical) What patients often say
Urine Orina Pipí, orina
Burning with urination Disuria Me arde al orinar
Urinary tract infection Infección de las vías urinarias Infección de orina
Bladder Vejiga Vejiga
Menstrual period Menstruación Regla
Pregnant Embarazada Embarazada, esperando
Contractions Contracciones Dolores
Miscarriage Aborto espontáneo Perdí al bebé
Vaginal bleeding Sangrado vaginal Sangrado
Prostate Próstata Próstata

A sensitive point: in Spanish, "aborto" covers both miscarriage and induced abortion. Say "aborto espontáneo" or "pérdida del embarazo" when you mean miscarriage, and be gentle with the wording.

Medications and procedures

English Spanish (technical) What patients often say
Medication Medicamento Medicina, pastillas
Prescription Receta Receta
Dose Dosis Dosis
Side effect Efecto secundario Me cayó mal
Pain reliever Analgésico Pastilla para el dolor
Antibiotic Antibiótico Antibiótico
Injection Inyección Inyección, piquete
Blood test Análisis de sangre Laboratorios, sacarme sangre
X-ray Radiografía Rayos X, placa
Surgery Cirugía Operación
Stitches Sutura Puntos, puntadas
Discharge (from hospital) Alta Me dieron de alta
Follow-up appointment Cita de seguimiento La próxima cita
Consent form Formulario de consentimiento Los papeles para firmar
Emergency room Sala de emergencias Emergencias
Over-the-counter De venta libre Sin receta
Vaccine Vacuna Vacuna
Interpreter Intérprete Intérprete
Teaspoon / tablespoon Cucharadita / cucharada Cucharadita / cucharada
Every 8 hours Cada 8 horas Cada 8 horas

How to make these terms stick

  • Learn by encounter, not alphabet. Study the respiratory terms the week you are on a pulmonary unit.
  • Learn both columns. Patients will say "me falta el aire," not "disnea." Recognizing the everyday word is half the job.
  • Say them out loud. Ten terms a day, spoken, beat fifty terms read silently.
  • Use spaced repetition. Review on a schedule rather than cramming.
  • Watch the false friends. "Constipado," "embarazada" and "once" cause real errors; see medication wording pitfalls in Spanish.

Put the terms to work with full phrases: 50 medical Spanish phrases for nurses, pain assessment in Spanish and ER triage in Spanish.

Keep a reference on you

The Medical Spanish Pocket Guide organizes 300+ phrases by encounter with easy pronunciation, and the Medical Spanish Kit adds 18 bedside badge cards and 399 printable flashcards. Try the free 3-card badge sample first, or browse the whole medical Spanish collection.

Medical Spanish Desk

General education for healthcare workers, not medical advice. Word lists support basic communication and are not a substitute for a qualified medical interpreter in clinical care. Independent resource; not affiliated with, endorsed by or sponsored by CCHI, NBCMI or any certifying body.