There are 3 small black spots and a blurred area of darkness in the image you have uploaded. I am not sure which one is of your concern. Small ones could be moles or skin tags. Dark area may be due to a lot of causes as the picture is not guiding. You may need to see a dermatologist directly or consult with a more clearer image with details of symptoms if any.
Next Steps
Visit or chat with clear image suggested
Health Tips
Protect from sun, Moisturise skin, Avoid contact with strong chemicals