Diagnosis

Diagnosing age spots may include:

• Visual inspection. Your doctor can usually diagnose age spots by looking at your skin.
• Skin biopsy. Your doctor may do other tests, such as a skin biopsy, to help distinguish an age spot from other conditions, such as lentigo maligna, a type of skin cancer.

  During a skin biopsy, your doctor takes a small sample of your skin (biopsy) for microscopic analysis. A skin biopsy is usually done in a doctor’s office, using a local anesthetic.

  to read more please go to

https://www.mayoclinic.org/diseases-conditions/age-spots/diagnosis-treatment/drc-20355864