On the study of the hand for indications of local and general disease / by Edward Blake.
- Blake, Edward T. (Edward Thomas), 1842-1905.
- Date:
- 1899
Licence: Public Domain Mark
Credit: On the study of the hand for indications of local and general disease / by Edward Blake. Source: Wellcome Collection.
40/198 (page 16)
![Some good observations as to the influence of typhus fever on the finger-nails, have been made by A. Vogel (see Bibliography.) The two illustrations on p. 15 are drawn from his work. Murchison has recorded at p. 517 of. his work On Con- tinued Fevers, that the nails may present, in enteric fever, markings similar to those which follow an attack of typhus and other acute diseases. But an infinite variety of other causes will lead to transverse furrowing. Among them are surgical poisoning, peritonitis, sea-sickness, the opium habit, acute eye-disease and influenza. Increase of the lateral nail-curve is said to be a sign of Nail pulp, the sides of the nail, losing their lateral support, naturally fall in. It has been observed to occur, with brown discoloration, after hemiplegia [Hughlings Jackson]. Exaggeration of the longitudinal curve is quite a distinct condition from clubbing of the extremities of the fingers; it will, however, be conveniently described with that peculiarity.](https://iiif.wellcomecollection.org/image/b20393908_0040.jp2/full/800%2C/0/default.jpg)
