Conclusion
Keratosis pilaris (KP) is a common disorder, multifactorial, affecting predominantly the extensor surfaces of the extremities. The cause is not fully understood. It occurs in children peaks in adolescence. Keratosis pilaris is usually asymptomatic and associated with skin conditions like atopic dermatitis. Keratosis pilaris tends to improve with age without treatment .There was no previous report in the association between testosterone injection and keratosis pilaris. This the first reported case noted.