The early bloating stage of decomposition is accompanied by drainage of red-brown purge fluid from the nose, mouth, and anus. The perineum may swell, the uterine cervix and vaginal wall may prolapse in women, and rectal mucosa may prolapse in men and women. The bloated anus may resemble female external genitalia.
Fig.1 Bloated anus.
Putrefaction begins immediately upon death and usually becomes noticeable within 24 hours. As soon as death occurs, the bacteria or microorganisms within the intestinal tract escape from the bowel into the other tissues of the body. As they grow, they begin to produce gases and other properties that distort and discolor the tissues of the body. The discoloration is a dark greenish combination of colors and is generally pronounced within 36 hours. As a result, the body begins to swell from the putrefactive gases, emitting an extremely repugnant odor. The chemicals produced as a result of putrefaction are cadaverine and putrescine, hydrogen sulfide and other sulfides, which generate a horrible smell.
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