How long do Post-COVID-19 Syndrome (Long COVID) symptoms last?

Symptoms of post-COVID-19 syndrome, also known as long COVID, can persist for weeks, months, or even years after the initial SARS-CoV-2 infection [1]. While many people recover within a few days or weeks, others experience persistent symptoms or develop new ones several months after the initial infection [1]. These symptoms may slowly improve over time, but in some cases, they can be severe enough to cause disability [1].

Long COVID is defined as a chronic condition that occurs after a SARS-CoV-2 infection and persists for at least three months [2]. Symptoms can range from mild to severe, often requiring comprehensive care, and can sometimes lead to disability [2].

Nature of Symptoms and Their Changes

Long COVID symptoms are highly variable; they can appear and persist, improve, worsen, or even relapse over the course of weeks, months, or years [2]. Post-COVID-19 syndrome does not affect everyone in the same way and can cause different types and combinations of symptoms across various parts of the body [1].

• General symptoms: Such as fatigue and fever [1].
• Respiratory symptoms: Such as difficulty breathing and cough [1].
• Cardiac symptoms: Such as chest pain and palpitations [1].
• Neurological symptoms: Such as difficulty thinking and concentrating ("brain fog"), headache, and sleep problems [1].
• Gastrointestinal symptoms: Such as diarrhea and stomach pain [1].

Some people may experience a wide range of symptoms similar to those found in other conditions, such as myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) [1].

Who Is at Higher Risk for Long COVID?

Anyone who has had COVID-19, whether the initial illness was mild or severe, can experience long-term symptoms [1]. However, factors that increase the risk of developing long COVID include [1]:

• Severe COVID-19 illness, especially if it required hospitalization or intensive care [1].
• Having underlying health conditions prior to the COVID-19 infection [1].
• Not receiving a COVID-19 vaccine [1].
• Having experienced multisystem inflammatory syndrome (MIS) during or after COVID-19, a rare but serious condition that causes inflammation in different parts of the body [1].

Research indicates that women and Hispanic individuals are more likely to develop long COVID [2]. Furthermore, every infection with the SARS-CoV-2 virus carries a risk of developing long COVID [2].

Diagnosis and Support Options

There is no specific test to diagnose long COVID [1]. Diagnosis is based on the patient's medical history—including whether they were diagnosed with COVID-19 via a positive test, symptoms, or exposure—along with a physical examination [2]. A doctor may order blood tests and imaging, but these results may appear normal even in the presence of long COVID symptoms [1].

Because there is no specific cure for long COVID yet, doctors work with patients to develop a personalized care plan to manage symptoms and improve quality of life [1]. These plans may include daily strategies, such as tracking symptoms and noting what improves or worsens them [3]. Support groups are available to assist people living with long COVID and their caregivers [3].

If you are experiencing persistent symptoms after a COVID-19 infection, it is important to speak with your healthcare provider to evaluate your condition and develop an appropriate treatment plan. For additional information regarding post-COVID-19 syndrome, you can visit Post-COVID-19 Syndrome (Long COVID): Symptoms, Diagnosis, and Support Options (Arabic).

Medical references

• Post-COVID Conditions (Long COVID)
• Long COVID Basics
• Living With Long COVID