Hello doctor, I want to know the possible reasons for heart enlargement.

Also, my husband's both siblings have heart trouble. One had open-heart surgery to remove a tumor last year. The other has recently been diagnosed with an enlarged heart and lack of pumping.

Can it be a hereditary problem? Is there a need for my husband to get his check up? If yes, what all tests should he go thru. He is 30 yrs old.

Thanks