what causes a swollen sheath
Fortunately, it has gone done some. Bobâs sheathâstill a bit swollen. Hersheyânormal sheath. Apparently, the accumulation of debris and smegma in the sheath is a common cause of swelling in the region, so this should usually be your first route if you notice slight swelling. If major swelling appears overnight and the area is painful, you may be dealing with something more serious though.