Fobias
Revisado por pares por Dr Colin Tidy, MRCGPÚltima actualización por Dr Hayley Willacy, FRCGP Last updated 18 Feb 2025
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Una fobia es un miedo intenso o temor a una cosa o evento, que es desproporcionado a la realidad de la situación. El tratamiento más efectivo es la terapia cognitivo-conductual. Los medicamentos antidepresivos también ayudan en muchos casos.
At a glance
A phobia is an intense fear of a situation or object.
Symptoms include anxiety, distress, sweating, and a fast heartbeat.
You may also feel anxious by just thinking about the feared situation.
Common phobias include social anxiety disorder and agoraphobia.
Treatments can include cognitive behavioural therapy (CBT) or antidepressants.
En este artículo:
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Síntomas de la fobia
Ansiedad o malestar. If you come near to, or into contact with, the feared situation you become anxious or distressed. In addition you may also have one or more unpleasant physical symptoms. Read more about síntomas de ansiedad.
Síntomas físicos. The physical symptoms are partly caused by the brain which sends lots of messages down nerves to various parts of the body when you are anxious. For example, the palms of your hands may become sweaty.
Exposición a la adrenalina. In addition, you release stress hormones - such as adrenaline (epinephrine) - into the bloodstream when you are anxious. These can also act on the heart (make it beat fast), muscles and other parts of the body to cause symptoms.
La idea de un desencadenante puede causar síntomas. You may even become anxious by just thinking of the feared situation. You end up avoiding the feared situation as much as possible, which can restrict your life and cause distress.
Tipos de fobia
Volver al contenidoSocial anxiety disorder. This is also known as social phobia and it is possibly the most common phobia. Consulte la hoja informativa separada llamada Trastorno de ansiedad social para más detalles.
Agoraphobia. This too is common. Many people think that agoraphobia means a fear of public places and open spaces. But this is just part of it. If you have agoraphobia you tend to have a number of fears of various places and situations. Consulte la hoja informativa separada llamada Agorafobia para más detalles.
Other specific phobias. Existen muchas otras fobias de una cosa o situación específica, por ejemplo:
Miedo a los espacios cerrados o a quedar atrapado (claustrofobia).
Miedo a ciertas criaturas, por ejemplo, las arañas (aracnofobia).
Miedo a las inyecciones o agujas (trypanofobia).
Miedo a vomitar (emetofobia).
Miedo a estar solo (monofobia).
Miedo a atragantarse (pseudodisfagia).
Miedo al dentista (dentofobia).
Miedo a volar (aerofobia).
Miedo a los agujeros (trypophobia).
Miedo al océano (thalassophobia).
Sin embargo, hay muchos otros, y algunos son bastante raros.
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Tratamiento de la fobia
Volver al contenidoCognitive and behavioural therapies.
These therapies help you to change certain ways that you think, feel and behave.
Son tratamientos útiles para diversos problemas de salud mental, incluyendo las fobias.
CBT usually works well to treat most phobias but does not suit everyone. However, it may not be available on the NHS in all parts of the UK. Consulte la hoja informativa separada llamada Terapia cognitivo-conductual (TCC) para más detalles.
Medicamentos antidepresivos
Antidepresivos are commonly used to treat depression.
However, they also help to reduce the symptoms of phobias (particularly agoraphobia and social phobia), even if you are not depressed.
Existen diferentes tipos de antidepresivos. Los antidepresivos inhibidores selectivos de la recaptación de serotonina (ISRS) son los más utilizados para los trastornos de ansiedad y fóbicos.
Benzodiazepinas. Benzodiazepinas such as diazepam are sometimes called minor tranquilisers but they can have serious side-effects.
Patient picks for Ansiedad

Salud mental
Trastorno de ansiedad social
El trastorno de ansiedad social a veces se llama fobia social. El trastorno de ansiedad social no es solo timidez; es más severo que esto.
por la Dra. Philippa Vincent, MRCGP

Salud mental
Manejo del estrés
Este folleto ofrece algunos consejos generales sobre cómo manejar el estrés. Sin embargo, contacte a un médico si desarrolla síntomas persistentes de ansiedad.
by Dr Hayley Willacy, FRCGP
Preguntas frecuentes
What kind of physical feelings might I experience with a phobia?
When you are anxious due to a phobia, your brain sends many messages to different parts of your body. These signals can cause physical symptoms such as sweaty palms. You also release stress hormones like adrenaline, which can make your heart beat fast and affect your muscles and other body parts.
Can I feel anxious from a phobia even if I'm not directly facing the feared situation?
Yes, you might become anxious just by thinking about the situation or object you fear. This can lead you to avoid the feared situation as much as possible, which can then limit your life and cause distress.
Is Cognitive Behavioural Therapy (CBT) always effective for phobias?
CBT is generally a good treatment for most phobias, as it helps you change how you think, feel, and behave. However, it doesn't suit everyone. Additionally, its availability on the NHS might vary across different parts of the UK.
How do antidepressant medicines help with phobias if I'm not feeling depressed?
Antidepressant medicines, particularly selective serotonin reuptake inhibitors (SSRIs), are often used to treat depression. However, they can also help to lessen the symptoms of phobias, especially agoraphobia and social phobia, regardless of whether you are experiencing depression.
Are there any side-effects to taking benzodiazepines for phobias?
Benzodiazepines, sometimes referred to as minor tranquilisers, can have serious side-effects. This is an important consideration for anyone thinking about using them for phobia treatment.
Lecturas adicionales y referencias
- Trastorno de ansiedad social: reconocimiento, evaluación y tratamiento; Guía clínica de NICE (mayo de 2013)
- Samra CK, Torrico TJ, Abdijadid S; Specific Phobia.
- Vadakkan C, Siddiqui W; Claustrophobia.
About the authorView full bio

Dr Hayley Willacy, FRCGP
Médico General, Autor Médico
MBChB (1992), DRCOG, DFFP, MRCOG (Part 1) MRCGP (2007), DFSRH (2013), MSc - medical education (2020)
Dr Hayley Willacy was an NHS GP working in northwest England, who retired from clinical practice in 2022 after 30 years.
About the reviewerView full bio

Dr Colin Tidy, MRCGP
Médico General, Autor Médico
MBBS, MRCGP, MRCP (Paediatrics), DCH
Dr Colin Tidy is an NHS Doctor, based in Oxfordshire.
Historial del artículo
La información en esta página está escrita y revisada por pares por clínicos calificados.
Próxima revisión: 17 Feb 2028
18 Feb 2025 | Última versión

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