What are these blue spots on my newborn baby's body? What are these blue spots on my newborn baby's body?

क्या हैं यह नीले दाग मेरे नवजात बच्चे के शरीर पर? यह कब तक रहेंगे, कैसे ठीक होंगे? यह खयों हुए? What are these blue birth marks, why did they happen, how long will they stay, what treatment is needed? https://youtu.be/HuKkto45y9s Charak Clinics