Titanium metallic discoloration has been reported to have occurred with titanium-containing ointment causing
papules on the penis of a patient.
[James, William; Berger, Timothy; Elston, Dirk (2005). ''Andrews' Diseases of the Skin: Clinical Dermatology''. (10th ed.). Saunders. .] Titanium screws used for orthopedic procedures, if they come near the skin, can also causes cutaneous blue-black hyperpigmentation.
See also
*
Skin lesion
References
{{Cutaneous-condition-stub
Disturbances of human pigmentation