Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Seek emergency care for new loss of bowel control together with severe lower back pain, new leg weakness, numbness around the genitals or buttocks, or difficulty starting or controlling urination.
This combination can indicate serious pressure on the nerves at the bottom of the spine and needs immediate assessment.
Prompt assessment is also appropriate for an unexplained change in bowel habits, weight loss, anemia, or persistent rectal discomfort.
Seek urgent medical advice for significant rectal bleeding, unexpected black or tar-like stool, bloody diarrhea with fever, severe abdominal pain or swelling, repeated vomiting, or signs of dehydration such as faintness and very little urination.
And for anyone, someone who:
Routine follow-up is useful after treatment begins.
A clinician may review stool consistency, the number of leakage episodes, urgency, skin health, treatment side effects, and how symptoms affect daily activities.
A bowel diary can show whether a plan is helping.
Arrange a routine medical appointment if leakage is recurring, worsening, interfering with daily life, or accompanied by ongoing constipation or diarrhea.
Every sign above is quoted from the sofidex article on Bowel incontinence. If you are not sure, err upward — it is always reasonable to be checked.