How long do withdrawal symptoms last after quitting smoking?

Nov 17, 2025 Source: Cainiu Health

Dr. Zhang Baohua

Introduction

For most people, withdrawal symptoms are most pronounced during the first few days to one week after quitting smoking, manifesting as irritability, anxiety, difficulty concentrating, and strong cravings for cigarettes. As the body gradually reduces its dependence on nicotine, these symptoms typically subside over 1 to 3 months, with decreasing impact on daily work and life. If individuals can maintain abstinence without relapsing during this period, further symptom improvement will become more evident.

Generally, withdrawal symptoms after quitting smoking gradually diminish and disappear within 1 to 3 months, although some individuals may experience them for more than 6 months. If concerned, it is advisable to seek medical advice early. Detailed analysis is as follows:

For most people, withdrawal symptoms are most noticeable during the first few days to one week after quitting smoking, manifesting as irritability, anxiety, difficulty concentrating, and strong cravings for cigarettes. As the body's dependence on nicotine gradually decreases, these symptoms typically ease over 1–3 months, with less impact on daily work and life. If individuals can remain smoke-free during this period, their symptoms will improve further.

However, for some individuals—particularly those who have smoked for many years, smoked heavily each day, or have slower metabolism and stronger psychological dependence—the withdrawal phase may last longer than 6 months. They might continue experiencing insomnia, recurring mood swings, abnormal appetite, and similar issues. These cases are often related to the dual adaptation process of both physical and psychological systems, requiring a longer adjustment period. Without proper guidance, persistent symptoms may trigger thoughts of relapse.

If withdrawal symptoms last unusually long or are accompanied by severe emotional distress or physical discomfort, individuals should promptly consult a doctor or a professional smoking cessation service. Scientific interventions can help alleviate symptoms, increase the likelihood of successful quitting, and prevent failure due to unmanaged stress.

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