The appearance of small black spots on the hands is considered to be due to seborrheic keratosis, hand bruising, and post-inflammatory hyperpigmentation.
1. Seborrheic keratosis: also known as age spots, mainly related to skin aging and long-term ultraviolet radiation, so the formation of small black spots on the hands.
2. Hand bruising: black spots on the hands, also not excluded due to trauma to the skin of the hands, internal small blood vessel damage after bleeding, may cause local bruising, so manifested as black spots.
3. Post-inflammatory hyperpigmentation: this belongs to the acquired pigmentation abnormalities, patients may be infected with eczema, acne, herpes zoster, impetigo and other disease factors, causing inflammatory skin reactions, which in turn will trigger the phenomenon of post-inflammatory hyperpigmentation, manifested in the hands of the appearance of small black spots.
There may be other reasons for the appearance of black spots on the hands, so you need to cooperate with the doctor to check and treat.