What is a subserosal fibroid?
A subserosal fibroid grows toward the outer surface of the uterus. Being far from the cavity, it usually leaves periods unchanged and shows itself instead through pressure: lower-abdominal fullness, urinary frequency and back or groin pain. Some hang from a thin stalk (pedunculated) — a subtype handled separately in treatment assessment.
Symptom profile
An outward-growing fibroid produces symptoms according to its neighbours: urinary frequency near the bladder, constipation near the bowel, back pain when growing backwards. Small subserosal fibroids are usually entirely silent and found incidentally.
Why are pedunculated fibroids different?
Fibroids attached by a thin stalk form a distinct subgroup for two reasons: rarely, the stalk can twist and cause sudden pain — and several treatments assess them differently. In clinical studies of heat-based methods, for example, pedunculated fibroids have generally been evaluated separately or excluded; you will find that detail on our candidacy page.