Tumor

During delivery, due to uterine contraction and birth canal compression, the blood circulation of the fetal head skin and subcutaneous tissue is blocked, localized congestion, edema and stasis, and even the skull will partially overlap to temporarily deform and deform the fetal head. It is called tumorigenesis. Tumor is also called fetal head edema. It is the edema of the subcutaneous tissue that is exposed first. It is not restricted by bone sutures. It exists at the time of delivery and disappears 2-3 days after delivery, showing a concave edema. Fetal head edema is due to the pressure of the fetal head, local circulation is blocked, causing tissue edema, no need to deal with tumor production.

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