Hi, Welcome to HealthcareMagic Forum.
Your symptoms suggest them to be Cherry Angiomas, which are non-cancerous that is benign skin growths made up of blood vessels. They can occur anywhere on the body and the cause is unknown. Consult a Dermatologist
and if possible get a Skin biopsy
done to confirm it. If they start to bleed, they can be removed by, electrocautery, cryotherapy
or Shave Excision.
Kindly don't worry as they are not serious.
Wish you Good Health, Take Care.