Patients with ankylosing spondylitis are advised not to drink alcohol. This is because alcohol consumption often harms the stomach, and patients with ankylosing spondylitis, due to the needs of their condition and the long-term pain they suffer, need to take non-steroidal anti-inflammatory drugs (NSAIDs) for pain relief over a long period. NSAIDs can also damage the gastric mucosa, causing mild erosions or even severe complications such as gastric ulcers and bleeding. Therefore, if patients with ankylosing spondylitis drink alcohol while also taking NSAIDs, they are very likely to develop gastric lesions. Thus, it is not recommended for those with ankylosing spondylitis to consume alcohol. (Medication should be used under the guidance of a professional doctor.)