Hello Thanks for query .The pink spots over scrotal sac are most likely to be Sebaceous Cysts .However the diagnosis can be confirmed only on clinical examination by a qualified Gneral Surgeon or Urologist The scrotal skin is rich in sebaceous glands and hence prone to get more sebaceous cyst due to accumulation of sebum beneath the skin. Normally they fade away without treatment however they need to be treated if increase in size or get infected. Please consult qualified General surgeon for assessment .If neede he may suggests you to get it excised in Toto. Ensure to observe proper personal hygiene by clinical entire genital area with warm soap water twice daily . Dr.Patil.