Avenue
Expert Member
NO ANAEMIA DOES NOT CAUSE DARK CIRCLES
Please don't google and post k@k here.
Also all those other serious conditions you mention will present with other more distinctive symptoms and signs.
Of course sleep deprivation in any form will make the eyes "appear" darker due to congestion so will simple conditions like sinusitis.
Most times these are transient and fluctuate on a day to day basis.
Persistent dark circles IS hyperpigmentation.
You're wrong because I had it. Doctor diagnosed it, went on a course of iron and dark rings disappeared.