In some cases, consuming probiotics can increase mucus production, which may be noticed in the stool. This is usually a temporary and harmless side effect. The presence of mucus in the stool after taking probiotics is typically not a cause for concern unless other symptoms like abdominal pain, diarrhoea, or fever accompany it. If you have any concerns or if the symptoms persist or worsen, it is recommended to consult with a healthcare professional for further evaluation.