Symptoms and Signs of Mitochondrial Myopathies or Encephalomyopathies

Reading time: 1 min

The most common symptoms of these diseases are:

A person carrying a lot of weight

Muscle weakness or the inability to exert oneself.

Drooping eyelid

Permanent drooping of the eyelids, sometimes accompanied by gaze palsy.

Retinal detachment

Retinal alterations.

Heart with a padlock representing a heart blockage

Heart blocks that require pacemakers

Person with a cane and trembling


Person with sweat, nausea and vomiting next to a toilet


Although these symptoms are very common, in the vast majority of cases they are not due to mitochondrial encephalomyopathies. The reason a medical professional may suspect one of these diseases is the appearance of several of these symptoms simultaneously or additively and at ages when symptoms are rare, for example, the appearance of severe deafness, which is relatively common in older people, but not in a teenager.

The other symptoms are identical to those seen in numerous illnesses that are much more frequent than mitochondrial diseases.

Información general de Muscular diseases or Myopathies

Consulta toda la información relacionada con Muscular diseases or Myopathies

Read more

Substantiated information by:

Jose César Milisenda
Josep M. Grau Junyent

Published: 24 November 2020
Updated: 24 November 2020

The donations that can be done through this webpage are exclusively for the benefit of Hospital Clínic of Barcelona through Fundació Clínic per a la Recerca Biomèdica and not for BBVA Foundation, entity that collaborates with the project of PortalClínic.


Receive the latest updates related to this content.

Thank you for subscribing!

If this is the first time you subscribe you will receive a confirmation email, check your inbox

An error occurred and we were unable to send your data, please try again later.