Conclusion
When blood flows improperly across your heart valves, a whooshing or swishing sound is made, which is known as a heart murmur. Many heart murmurs are harmless, so there’s no need to worry. However, a cardiac murmur should be examined to rule out any underlying health issues.
References;
[1] https://www.mayoclinic.org/diseases-conditions/anemia/symptoms-causes/syc-20351360
[2] https://www.mayoclinic.org/diseases-conditions/carcinoid-syndrome/symptoms-causes/syc-20370666
[3] https://www.nhs.uk/conditions/endocarditis/
[4] https://my.clevelandclinic.org/health/diseases/17116-hypertrophic-cardiomyopathy
[5] https://www.nhs.uk/conditions/x-ray/
[6] https://www.nhs.uk/conditions/echocardiogram/
[7] https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/electrocardiogram