There were no bad symptoms, and the wounds healed in four weeks.
The bladder is not always injured by penetration of the abdominal wall, but may be wounded by penetration through the anus or vagina, or even by an instrument entering the buttocks and passing through the smaller sacrosciatic notch.

Camper records the case of a sailor who fell from a mast and struck upon some fragments of wood, one of which entered the anus and penetrated the bladder, the result being a rectovesical fistula.

About a year later the man consulted Camper, who unsuccessfully attempted to extract the piece of wood; but by incising the fistula it was found that two calculi had formed about the wooden pieces, and when these were extracted the patient recovered.

Perrin gives the history of a man of forty who, while adjusting curtains, fell and struck an overturned chair; one of the chair-legs penetrated the anus.

Its extraction was followed by a gush of urine, and for several days the man suffered from incontinence of urine and feces.