37:
517:
127:
half red, pink, or brown, with a sharp line of demarcation between the two halves. The darker distal discoloration does not fade on pressure, which differentiates
Lindsay's nails from
143:, splinter hemorrhage, and half and half nails were significantly more common in hemodialysis patients, while leukonychia was significantly more common in transplant patients.
593:
1613:
717:
1623:
489:
1960:
586:
1618:
1038:
1598:
124:
116:
1139:
579:
1575:
1456:
1144:
1124:
1093:
132:
69:
1316:
1063:
1580:
1339:
1129:
1119:
324:
243:
1738:
1451:
762:
151:
Half and half nail is when the distal portion of the nail is reddish brown, while the proximal area is white.
1728:
1388:
1641:
1546:
212:
203:
As the symptom itself is benign from the medical point of view, treatment is limited to cosmetic measures.
1413:
1875:
1843:
1671:
1156:
1088:
897:
757:
752:
139:
patients and 56% of renal transplant patients have at least one type of nail abnormality. Absence of
1865:
1558:
857:
787:
1965:
1770:
1754:
1570:
1428:
1917:
1870:
1748:
1681:
1516:
1200:
1149:
945:
867:
1765:
1461:
1378:
1296:
1286:
1073:
1068:
822:
99:
188:
1935:
1850:
1713:
1666:
1608:
1511:
1398:
1161:
1033:
912:
767:
1818:
1759:
1523:
1028:
1010:
1005:
965:
638:
164:
8:
1800:
1789:
1702:
1656:
1633:
1551:
1334:
1083:
1000:
979:
887:
882:
782:
261:"Terry's Nails and Lindsay's Nails: Two Nail Abnormalities in Chronic Systemic Diseases"
1838:
1828:
1718:
1418:
1229:
1182:
1171:
1048:
902:
705:
474:
441:
431:
398:
378:
343:
293:
260:
180:
1855:
1823:
1775:
1661:
1651:
1501:
1393:
1346:
1276:
1058:
1043:
1020:
995:
990:
847:
461:
418:
365:
320:
298:
280:
239:
89:
54:
49:
1733:
1697:
1433:
1015:
960:
907:
862:
700:
669:
469:
453:
426:
410:
373:
355:
288:
272:
184:
140:
128:
104:
1927:
1496:
1403:
1281:
1219:
1195:
955:
892:
852:
807:
633:
620:
168:
1833:
1813:
1692:
1603:
1490:
1466:
1408:
1383:
1306:
1291:
1271:
1224:
1210:
1103:
1053:
772:
603:
571:
414:
160:
120:
526:
276:
1954:
1912:
1860:
1687:
1356:
1214:
1205:
1190:
985:
832:
827:
812:
802:
792:
661:
465:
422:
369:
360:
284:
1882:
1743:
1646:
1565:
1541:
1533:
1239:
1233:
922:
872:
817:
777:
747:
737:
712:
682:
674:
611:
302:
136:
81:
1676:
1361:
1301:
877:
842:
837:
797:
722:
656:
643:
76:
58:
509:
457:
1887:
1707:
1628:
1351:
1249:
695:
648:
625:
1907:
1366:
1311:
1254:
1244:
1111:
950:
931:
742:
687:
532:
192:
559:
397:
Aouali, Soraya; Sefraoui, Saida; Zizi, Nada; Dikhaye, Siham (2021).
1899:
1808:
1723:
1371:
1266:
1261:
970:
936:
732:
494:
172:
36:
399:"Half and half nail, is it a marker of severe COVID-19 infection?"
1326:
537:
521:
1481:
176:
337:
335:
333:
234:
James, William; Berger, Timothy; Elston, Dirk (2005).
409:. Ovid Technologies (Wolters Kluwer Health): 102963.
330:
499:
254:
252:
236:
259:Pitukweerakul, Siwadon; Pilla, Sree (2016-08-01).
258:
1614:Disseminate and recurrent infundibulofolliculitis
249:
1952:
601:
159:Half and half nail is seen in 15-50% of chronic
718:Congenital onychodysplasia of the index fingers
1624:Erythromelanosis follicularis faciei et colli
587:
317:Fitzpatrick's Dermatology in General Medicine
131:. The discoloration is thought to be due to
163:patients. It has also been associated with
115:(also known as "Lindsay's nails") show the
594:
580:
341:
35:
473:
430:
377:
359:
292:
230:
228:
1619:Erosive pustular dermatosis of the scalp
1039:Central centrifugal cicatricial alopecia
342:Avhad, Ganesh; Ghuge, Priyanka (2014).
1953:
1599:Acrokeratosis paraneoplastica of Bazex
440:Huang, W.-T.; Wu, C.-C. (2009-03-17).
225:
575:
146:
1638:Intermittent hair–follicle dystrophy
446:Canadian Medical Association Journal
309:
265:Journal of General Internal Medicine
1576:Recurrent palmoplantar hidradenitis
1457:Idiopathic facial aseptic granuloma
1094:Marie Unna hereditary hypotrichosis
195:, and even in healthy individuals.
13:
1317:Lupus miliaris disseminatus faciei
1064:Dissecting cellulitis of the scalp
390:
14:
1977:
1961:Conditions of the skin appendages
1581:Neutrophilic eccrine hidradenitis
1340:Granulomatous perioral dermatitis
483:
348:Indian Dermatology Online Journal
133:β-melanocyte–stimulating hormone
1739:Traumatic anserine folliculosis
1452:Granulomatous facial dermatitis
763:Malalignment of the nail plate
452:(6). CMA Joule Inc.: 687–687.
403:Annals of Medicine and Surgery
1:
1389:Erythrotelangiectatic rosacea
218:
1642:Keratosis pilaris atropicans
1547:Folliculitis nares perforans
213:List of cutaneous conditions
198:
7:
1414:Persistent edema of rosacea
206:
10:
1982:
1844:Postmiliarial hypohidrosis
1672:Menkes kinky hair syndrome
1089:Frontal fibrosing alopecia
898:Staining of the nail plate
758:Longitudinal erythronychia
753:Lichen planus of the nails
415:10.1016/j.amsu.2021.102963
319:. (6th ed.). McGraw-Hill.
315:Freedberg, et al. (2003).
1926:
1898:
1799:
1788:
1729:Rubinstein–Taybi syndrome
1591:
1559:Pseudofolliculitis barbae
1532:
1479:
1444:
1325:
1181:
1170:
1102:
930:
921:
858:Pterygium inversum unguis
610:
547:
503:
277:10.1007/s11606-016-3628-z
154:
98:
88:
75:
64:
48:
43:
34:
26:
21:
1771:Uncombable hair syndrome
1755:Trichorrhexis invaginata
1571:Hidradenitis suppurativa
1429:Periorificial dermatitis
361:10.4103/2229-5178.144553
238:. (10th ed.). Saunders.
1749:Trichomycosis axillaris
1682:Parakeratosis pustulosa
1201:Acne miliaris necrotica
982:(male-pattern baldness)
946:noncicatricial alopecia
868:Purpura of the nail bed
1766:Trichostasis spinulosa
1462:Periorbital dermatitis
1379:Papulopustular rosacea
1297:Acne with facial edema
1287:Acne keloidalis nuchae
1074:Folliculitis decalvans
1069:Graham-Little syndrome
823:Onychoptosis defluvium
100:Differential diagnosis
1936:Sebaceous hyperplasia
1851:Granulosis rubra nasi
1714:Pityriasis amiantacea
1667:Loose anagen syndrome
1609:Bubble hair deformity
1399:Gram-negative rosacea
1162:Nevoid hypertrichosis
1034:Pseudopelade of Brocq
913:Twenty-nail dystrophy
788:Nail–patella syndrome
768:Median nail dystrophy
495:Life In The Fast Lane
135:. Seventy percent of
1819:Miliaria crystalline
1760:Trichorrhexis nodosa
1029:cicatricial alopecia
1011:Alopecia neoplastica
1006:Trichorrhexis nodosa
639:Yellow nail syndrome
442:"Half-and-half nail"
344:"Half and half nail"
165:yellow nail syndrome
94:Physical examination
1918:Fox–Fordyce disease
1703:Pili pseudoannulati
1657:Lichen planopilaris
1634:Hair follicle nevus
1552:Tufted folliculitis
1335:Perioral dermatitis
1084:Triangular alopecia
1001:Lichen planopilaris
980:Androgenic alopecia
888:Splinter hemorrhage
883:Shell nail syndrome
728:Half and half nails
458:10.1503/cmaj.081312
113:Half and half nails
44:Half and half nails
22:Half and half nails
1839:Occlusion miliaria
1829:Miliaria pustulosa
1719:Plica neuropathica
1419:Rosacea conglobata
1230:Acne medicamentosa
1049:Traumatic alopecia
903:Subungual hematoma
548:External resources
354:(5). Medknow: 67.
185:Kawasaki's disease
147:Signs and symptoms
84:, renal transplant
1948:
1947:
1944:
1943:
1824:Miliaria profunda
1784:
1783:
1776:Woolly hair nevus
1662:Lichen spinulosus
1502:Trichilemmal cyst
1475:
1474:
1394:Glandular rosacea
1347:Phymatous rosacea
1277:Occupational acne
1059:Hot comb alopecia
1044:Pressure alopecia
1021:Alopecia mucinosa
996:Traction alopecia
991:Telogen effluvium
569:
568:
110:
109:
90:Diagnostic method
55:Internal medicine
16:Medical condition
1973:
1797:
1796:
1734:Setleis syndrome
1698:Pili multigemini
1434:Pyoderma faciale
1179:
1178:
1016:Anagen effluvium
928:
927:
863:Pterygium unguis
783:Muehrcke's lines
670:Onychotillomania
596:
589:
582:
573:
572:
501:
500:
479:
477:
436:
434:
384:
383:
381:
363:
339:
328:
313:
307:
306:
296:
256:
247:
232:
189:Behcet's disease
39:
19:
18:
1981:
1980:
1976:
1975:
1974:
1972:
1971:
1970:
1966:Nails (anatomy)
1951:
1950:
1949:
1940:
1922:
1894:
1791:
1780:
1753:Trichorrhexis (
1587:
1528:
1497:Epidermoid cyst
1471:
1440:
1404:Steroid rosacea
1321:
1282:Acne aestivalis
1220:Excoriated acne
1196:Acne conglobata
1173:
1166:
1098:
935:
917:
893:Spotted lunulae
853:Psoriatic nails
808:Onychomatricoma
621:Onychogryphosis
606:
604:skin appendages
600:
570:
565:
564:
543:
542:
512:
486:
439:
396:
393:
391:Further reading
388:
387:
340:
331:
314:
310:
257:
250:
233:
226:
221:
209:
201:
181:Crohn's disease
169:hyperthyroidism
157:
149:
119:portion of the
30:Lindsay's nails
17:
12:
11:
5:
1979:
1969:
1968:
1963:
1946:
1945:
1942:
1941:
1939:
1938:
1932:
1930:
1924:
1923:
1921:
1920:
1915:
1910:
1904:
1902:
1896:
1895:
1893:
1892:
1891:
1890:
1880:
1879:
1878:
1873:
1868:
1858:
1856:Ross' syndrome
1853:
1848:
1847:
1846:
1841:
1836:
1834:Miliaria rubra
1831:
1826:
1821:
1816:
1814:Colloid milium
1805:
1803:
1794:
1786:
1785:
1782:
1781:
1779:
1778:
1773:
1768:
1763:
1757:
1751:
1746:
1741:
1736:
1731:
1726:
1721:
1716:
1711:
1705:
1700:
1695:
1693:Pili bifurcati
1690:
1684:
1679:
1674:
1669:
1664:
1659:
1654:
1652:Koenen's tumor
1649:
1644:
1639:
1636:
1631:
1626:
1621:
1616:
1611:
1606:
1604:Acroosteolysis
1601:
1595:
1593:
1589:
1588:
1586:
1585:
1584:
1583:
1578:
1573:
1562:
1561:
1556:
1555:
1554:
1549:
1538:
1536:
1530:
1529:
1527:
1526:
1521:
1520:
1519:
1514:
1508:Steatocystoma
1506:
1505:
1504:
1499:
1491:Sebaceous cyst
1486:
1484:
1477:
1476:
1473:
1472:
1470:
1469:
1467:SAPHO syndrome
1464:
1459:
1454:
1448:
1446:
1442:
1441:
1439:
1438:
1437:
1436:
1431:
1421:
1416:
1411:
1409:Ocular rosacea
1406:
1401:
1396:
1391:
1386:
1384:Lupoid rosacea
1381:
1376:
1375:
1374:
1369:
1364:
1359:
1354:
1344:
1343:
1342:
1331:
1329:
1323:
1322:
1320:
1319:
1314:
1309:
1307:Acne necrotica
1304:
1299:
1294:
1292:Acne mechanica
1289:
1284:
1279:
1274:
1272:Acne cosmetica
1269:
1264:
1259:
1258:
1257:
1252:
1247:
1237:
1227:
1225:Acne fulminans
1222:
1217:
1211:Infantile acne
1208:
1203:
1198:
1193:
1187:
1185:
1176:
1168:
1167:
1165:
1164:
1159:
1154:
1153:
1152:
1147:
1142:
1134:
1133:
1132:
1127:
1122:
1114:
1108:
1106:
1104:Hypertrichosis
1100:
1099:
1097:
1096:
1091:
1086:
1077:
1076:
1071:
1066:
1061:
1056:
1054:Tumor alopecia
1051:
1046:
1041:
1036:
1024:
1023:
1018:
1013:
1008:
1003:
998:
993:
988:
983:
976:
975:
974:
973:
968:
963:
958:
941:
939:
925:
919:
918:
916:
915:
910:
905:
900:
895:
890:
885:
880:
875:
870:
865:
860:
855:
850:
848:Plummer's nail
845:
840:
835:
830:
825:
820:
815:
810:
805:
800:
795:
790:
785:
780:
775:
770:
765:
760:
755:
750:
745:
740:
735:
730:
725:
720:
715:
710:
709:
708:
703:
691:
690:
685:
678:
677:
672:
665:
664:
659:
652:
651:
646:
641:
636:
629:
628:
623:
616:
614:
608:
607:
599:
598:
591:
584:
576:
567:
566:
563:
562:
552:
551:
549:
545:
544:
541:
540:
529:
513:
508:
507:
505:
504:Classification
498:
497:
492:
485:
484:External links
482:
481:
480:
437:
392:
389:
386:
385:
329:
308:
271:(8): 970–970.
248:
223:
222:
220:
217:
216:
215:
208:
205:
200:
197:
156:
153:
148:
145:
123:white and the
108:
107:
102:
96:
95:
92:
86:
85:
79:
73:
72:
66:
62:
61:
52:
46:
45:
41:
40:
32:
31:
28:
24:
23:
15:
9:
6:
4:
3:
2:
1978:
1967:
1964:
1962:
1959:
1958:
1956:
1937:
1934:
1933:
1931:
1929:
1925:
1919:
1916:
1914:
1913:Chromhidrosis
1911:
1909:
1906:
1905:
1903:
1901:
1897:
1889:
1886:
1885:
1884:
1881:
1877:
1874:
1872:
1869:
1867:
1864:
1863:
1862:
1861:Hyperhidrosis
1859:
1857:
1854:
1852:
1849:
1845:
1842:
1840:
1837:
1835:
1832:
1830:
1827:
1825:
1822:
1820:
1817:
1815:
1812:
1811:
1810:
1807:
1806:
1804:
1802:
1798:
1795:
1793:
1787:
1777:
1774:
1772:
1769:
1767:
1764:
1761:
1758:
1756:
1752:
1750:
1747:
1745:
1742:
1740:
1737:
1735:
1732:
1730:
1727:
1725:
1722:
1720:
1717:
1715:
1712:
1709:
1706:
1704:
1701:
1699:
1696:
1694:
1691:
1689:
1688:Pili annulati
1685:
1683:
1680:
1678:
1675:
1673:
1670:
1668:
1665:
1663:
1660:
1658:
1655:
1653:
1650:
1648:
1645:
1643:
1640:
1637:
1635:
1632:
1630:
1627:
1625:
1622:
1620:
1617:
1615:
1612:
1610:
1607:
1605:
1602:
1600:
1597:
1596:
1594:
1590:
1582:
1579:
1577:
1574:
1572:
1569:
1568:
1567:
1564:
1563:
1560:
1557:
1553:
1550:
1548:
1545:
1544:
1543:
1540:
1539:
1537:
1535:
1531:
1525:
1522:
1518:
1515:
1513:
1510:
1509:
1507:
1503:
1500:
1498:
1495:
1494:
1492:
1488:
1487:
1485:
1483:
1478:
1468:
1465:
1463:
1460:
1458:
1455:
1453:
1450:
1449:
1447:
1443:
1435:
1432:
1430:
1427:
1426:
1425:
1422:
1420:
1417:
1415:
1412:
1410:
1407:
1405:
1402:
1400:
1397:
1395:
1392:
1390:
1387:
1385:
1382:
1380:
1377:
1373:
1370:
1368:
1365:
1363:
1360:
1358:
1357:Blepharophyma
1355:
1353:
1350:
1349:
1348:
1345:
1341:
1338:
1337:
1336:
1333:
1332:
1330:
1328:
1324:
1318:
1315:
1313:
1310:
1308:
1305:
1303:
1300:
1298:
1295:
1293:
1290:
1288:
1285:
1283:
1280:
1278:
1275:
1273:
1270:
1268:
1265:
1263:
1260:
1256:
1253:
1251:
1248:
1246:
1243:
1242:
1241:
1238:
1235:
1231:
1228:
1226:
1223:
1221:
1218:
1216:
1215:Neonatal acne
1212:
1209:
1207:
1206:Tropical acne
1204:
1202:
1199:
1197:
1194:
1192:
1191:Acne vulgaris
1189:
1188:
1186:
1184:
1180:
1177:
1175:
1169:
1163:
1160:
1158:
1155:
1151:
1148:
1146:
1143:
1141:
1138:
1137:
1135:
1131:
1128:
1126:
1123:
1121:
1118:
1117:
1115:
1113:
1110:
1109:
1107:
1105:
1101:
1095:
1092:
1090:
1087:
1085:
1082:
1079:
1078:
1075:
1072:
1070:
1067:
1065:
1062:
1060:
1057:
1055:
1052:
1050:
1047:
1045:
1042:
1040:
1037:
1035:
1032:
1030:
1026:
1025:
1022:
1019:
1017:
1014:
1012:
1009:
1007:
1004:
1002:
999:
997:
994:
992:
989:
987:
986:Hypotrichosis
984:
981:
978:
977:
972:
969:
967:
964:
962:
959:
957:
954:
953:
952:
949:
947:
943:
942:
940:
938:
933:
929:
926:
924:
920:
914:
911:
909:
908:Terry's nails
906:
904:
901:
899:
896:
894:
891:
889:
886:
884:
881:
879:
876:
874:
871:
869:
866:
864:
861:
859:
856:
854:
851:
849:
846:
844:
841:
839:
836:
834:
833:Onychoschizia
831:
829:
828:Onychorrhexis
826:
824:
821:
819:
816:
814:
813:Onychomycosis
811:
809:
806:
804:
803:Onychomadesis
801:
799:
796:
794:
793:Onychoatrophy
791:
789:
786:
784:
781:
779:
776:
774:
771:
769:
766:
764:
761:
759:
756:
754:
751:
749:
746:
744:
741:
739:
736:
734:
731:
729:
726:
724:
721:
719:
716:
714:
711:
707:
704:
702:
699:
698:
697:
693:
692:
689:
686:
684:
680:
679:
676:
673:
671:
667:
666:
663:
662:Nail clubbing
660:
658:
654:
653:
650:
647:
645:
642:
640:
637:
635:
631:
630:
627:
624:
622:
618:
617:
615:
613:
609:
605:
602:Disorders of
597:
592:
590:
585:
583:
578:
577:
574:
561:
557:
554:
553:
550:
546:
539:
535:
534:
530:
528:
524:
523:
519:
515:
514:
511:
506:
502:
496:
493:
491:
488:
487:
476:
471:
467:
463:
459:
455:
451:
447:
443:
438:
433:
428:
424:
420:
416:
412:
408:
404:
400:
395:
394:
380:
375:
371:
367:
362:
357:
353:
349:
345:
338:
336:
334:
326:
325:0-07-138076-0
322:
318:
312:
304:
300:
295:
290:
286:
282:
278:
274:
270:
266:
262:
255:
253:
245:
244:0-7216-2921-0
241:
237:
231:
229:
224:
214:
211:
210:
204:
196:
194:
190:
186:
182:
178:
174:
170:
166:
162:
161:renal failure
152:
144:
142:
138:
134:
130:
129:Terry's nails
126:
122:
118:
114:
106:
105:Terry's nails
103:
101:
97:
93:
91:
87:
83:
80:
78:
74:
71:
67:
63:
60:
56:
53:
51:
47:
42:
38:
33:
29:
25:
20:
1883:Hypohidrosis
1876:Palmoplantar
1744:Trichomegaly
1647:Kinking hair
1566:Hidradenitis
1542:Folliculitis
1534:Inflammation
1423:
1240:Halogen acne
1234:steroid acne
1080:
1027:
944:
873:Racquet nail
843:Pincer nails
818:Onychophosis
778:Melanonychia
748:Ingrown nail
738:Hapalonychia
727:
713:Chevron nail
683:Ingrown nail
675:Onychophagia
649:Azure lunula
634:Beau's lines
555:
531:
516:
449:
445:
406:
402:
351:
347:
316:
311:
268:
264:
235:
202:
158:
150:
137:hemodialysis
112:
111:
82:hemodialysis
77:Risk factors
1866:Generalized
1677:Monilethrix
1480:Follicular
1362:Gnathophyma
1302:Pomade acne
1157:Prepubertal
1140:generalised
1136:Congenital
1125:generalised
966:universalis
878:Red lunulae
838:Platonychia
798:Onycholysis
773:Mees' lines
723:Green nails
694:ungrouped:
657:Koilonychia
644:Leukonychia
619:thickness:
179:infection,
59:Dermatology
27:Other names
1955:Categories
1888:Anhidrosis
1708:Pili torti
1629:Hair casts
1352:Rhinophyma
1250:Bromoderma
1081:ungrouped:
696:Paronychia
668:behavior:
626:Onychauxis
219:References
68:increased
1928:Sebaceous
1908:Body odor
1871:Gustatory
1592:Ungrouped
1517:multiplex
1445:Ungrouped
1367:Metophyma
1312:Blackhead
1255:Chloracne
1245:Iododerma
1172:Acneiform
1145:localised
1130:patterned
1120:localised
1116:Acquired
1112:Hirsutism
932:Hair loss
743:Hook nail
688:Anonychia
533:SNOMED CT
466:0820-3946
423:2049-0801
370:2229-5178
285:1525-1497
199:Treatment
193:cirrhosis
50:Specialty
1900:Apocrine
1809:Miliaria
1724:Poliosis
1424:variants
1372:Otophyma
1267:Tar acne
1262:Oil acne
1174:eruption
1150:X-linked
971:Ophiasis
951:Alopecia
937:Baldness
733:Hangnail
560:Q5641790
538:50077007
490:VisualDx
303:26902238
207:See also
173:pellagra
117:proximal
1801:Eccrine
1512:simplex
1327:Rosacea
1232:(e.g.,
961:totalis
706:Chronic
681:other:
655:shape:
632:color:
556:Scholia
475:2653574
432:8519785
379:4252964
294:4945547
1792:glands
1686:Pili (
956:areata
472:
464:
429:
421:
376:
368:
323:
301:
291:
283:
242:
155:Causes
141:lunula
125:distal
65:Causes
1790:Sweat
1524:Milia
1482:cysts
701:Acute
527:L62.8
70:β-MSH
1183:Acne
923:Hair
612:Nail
462:ISSN
419:ISSN
366:ISSN
321:ISBN
299:PMID
281:ISSN
240:ISBN
121:nail
518:ICD
470:PMC
454:doi
450:180
427:PMC
411:doi
374:PMC
356:doi
289:PMC
273:doi
177:HIV
1957::
1493:"
558::
536::
525::
522:10
468:.
460:.
448:.
444:.
425:.
417:.
407:71
405:.
401:.
372:.
364:.
350:.
346:.
332:^
297:.
287:.
279:.
269:31
267:.
263:.
251:^
227:^
191:,
187:,
183:,
175:,
171:,
167:,
57:,
1762:)
1710:)
1489:"
1236:)
1213:/
1031::
948::
934:/
595:e
588:t
581:v
520:-
510:D
478:.
456::
435:.
413::
382:.
358::
352:5
327:.
305:.
275::
246:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
