Research Article

Is There an Association between Keloids and Blood Groups?

Table 1

Clinical features of keloids.

NumberPercentage (%)

Number of keloidsOne keloid1923,2
2 to 5 keloids4352,4
6 to 10 keloids1012,2
More than 10 keloids1012,2

Size of keloids*1 to 5 cm4858,5
6 to 10 cm1720,7
11 to 15 cm1113,4
16 to 20 cm33,7
More than 20 cm33,7

Duration of keloidsLess than 6 months1113,4
6 to 12 months1822
13 months to 5 years1822
More than 5 years3542,7

Locations of the keloidsHead1923,2
Neck1113,4
Trunk4757,3
Upper limbs2834,1
Lower limbs911

Family history of keloids
(cases/controls)
Ascendants18/31
Progeny2/0
Collateral3/2
No or I don’t know59/131

*The length of the major axis of the largest keloid of each patient.
On the trunk: presternal region = 33 cases.
On the upper limbs: shoulders = 10 cases.
Some patients had multiple locations.
cm: centimeter.