What happens if sleep apnea is left untreated for years?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Untreated sleep apnea can cause serious health complications, including high blood pressure, heart disease, stroke, type 2 diabetes, and persistent daytime sleepiness that increases accident risk. Early recognition of symptoms is critical to preventing long-term damage.

Because sleep apnea symptoms often overlap with other conditions—like fatigue, snoring, or morning headaches—it can be difficult to know whether what you're experiencing is truly sleep apnea or something else. Taking a free, instant, online symptom check can help you quickly assess your symptoms, understand possible causes, and confidently decide your next steps—before complications develop.

Reviewed for medical accuracy: 07/20/2026

What brings you in today?

Can I treat this myself Do I need to see a doctor Where should I go for care I'm concerned about a symptom Concerned about a possible condition My symptoms are getting worse Seeking a second opinion

Not seeing your question? No worries.

Submit your own Question

Explanation

Untreated sleep apnea can have significant impacts on a person's health and daily life. Over time, it can increase the risk of serious conditions such as heart disease and high blood pressure. People with untreated sleep apnea often experience excessive daytime sleepiness, which can affect their ability to concentrate and perform daily tasks safely.

Long-Term Health Effects

Heart Problems: Sleep apnea can lead to heart disease by causing irregular heartbeats and increasing the risk of heart attacks.
High Blood Pressure: The condition can make blood pressure harder to control, leading to further complications.
Daytime Sleepiness: This can result in decreased alertness and a higher risk of accidents.

Impact on Daily Life

Concentration Issues: Individuals may find it hard to focus, affecting work and personal life.
Mood Changes: There can be an increase in irritability and mood swings.

If you're experiencing any of these symptoms, you can check your symptoms with our free AI-powered tool and seek medical advice to manage the condition and prevent these long-term effects.

(References)

Fisher D, Pillar G, Malhotra A, Peled N, & Lavie P. (2002). Long-term Follow-Up of Untreated Patients With Sleep .... Respiratory medicine, 12113384.
Marin-Oto M, Vicente EE, & Marin JM. (2019). Long term management of obstructive sleep apnea and its .... Multidisciplinary respiratory medicine, 31312448.
Morsy NE, Farrag NS, Zaki NFW, Badawy AY, Abdelhafez SA, El-Gilany AH, et al. (2019). Obstructive sleep apnea: personal, societal, public health, .... Reviews on environmental health, 31085749.

Thinking about asking ChatGPT?Ask me instead

Tell your friends about us.

We would love to help them too.

For First Time Users

What is Ubie’s Doctor’s Note?

We provide a database of explanations from real doctors on a range of medical topics. Get started by exploring our library of questions and topics you want to learn more about.

Was this page helpful?

Purpose and positioning of servicesUbie Doctor's Note is a service for informational purposes. The provision of information by physicians, medical professionals, etc. is not a medical treatment. If medical treatment is required, please consult your doctor or medical institution. We strive to provide reliable and accurate information, but we do not guarantee the completeness of the content. If you find any errors in the information, please contact us.