Umbilicus
The umbilicus (navel) is the site on the ventral abdomen where the umbilical cord attached during fetal development. In foals, the umbilical stump is the remnant of this connection, typically drying and detaching within the first week of life. The umbilical structures in the fetus include two umbilical arteries, one umbilical vein, and the urachus. After birth these structures should close and retract. Failure to close properly can result in patent urachus, umbilical hernias, or internal infections involving the umbilical remnants.
Umbilical infections (omphalitis, omphalophlebitis, omphaloarteritis) and patent urachus are common problems in foals. Umbilical hernias are also common and may require surgical repair if large or persistent. Diagnosis uses clinical examination and ultrasound. Early treatment improves outcomes.
Monitor the umbilicus closely in newborn foals. Swelling, discharge, heat, or a wet umbilicus should be evaluated immediately. Keep the area clean and dry.
Umbilical infections (omphalitis, omphalophlebitis, omphaloarteritis) and patent urachus are common problems in foals. Umbilical hernias are also common and may require surgical repair if large or persistent. Diagnosis uses clinical examination and ultrasound. Early treatment improves outcomes.
Monitor the umbilicus closely in newborn foals. Swelling, discharge, heat, or a wet umbilicus should be evaluated immediately. Keep the area clean and dry.
See the Umbilicus on our interactive 3D horse model. Open 3D Model