Colic pains in lower part of the abdomen, especially after fasting, relieved by a full meal; ravenous hunger; distension of the bowels with gas; alternat» constipation and diarrhea; sensation of something moving in the bowels; itching about the anus: tickling of the nose; vomiting; headache; night sweats: palpitation; heartburn: cramps; in children, convulsions; numbness; deafness; blindness; the passage of portions of the worm.

Of the various symptoms mentioned above, the last is the only positive sign of the presence of tape-worm. All the others are never present in any one case; and very often no symptoms whatever occur except the passage of portions of the worm and of its eggs (see Figs. 276 to 278). There are no means of distinguishing by general symptoms the different varieties of tape-worm which inhabit the human body; the variety can be determined only by examination of the portions of the worm which are expelled, or their eggs, with a microscope. This is not, however, a point of great practical importance, as the same remedy is efficient for all varieties. In some cases, various other symptoms are developed, particularly those which are due to the development of hydatids in the liver, the brain, the muscles, and other organs. This may occur in consequence of self-infection with the emhryos of the worm through the introduction of its eggs into the stomach by means of violent retching or vomiting.

Fig. 276. Egg of Taenia Saginata.

Fig. 276. Egg of Taenia Saginata.

Fig. 277. Egg of Taenia Bothriocephalus Latus.

Fig. 277. Egg of Taenia Bothriocephalus Latus.

Fig. 278. Egg of Taeola Solium.

Fig. 278. Egg of Taeola Solium.