My husband's young cousin has just thankfully recovered from leukemia, and my mil pointed out around the time he was first diagnosed that another cousin of theirs abroad had also had a child ill with it at the same time. I have very bad health anxiety particularly worse after having a child, so this worried me but after googling I found that it usually isn't hereditary and didn't really think about it.
I've recently been triggered by finding out that two siblings I know have both had sons who developed leukaemia as toddlers both thankfully cured now.
I'm now really worried about my toddler after hearing this, that's a big coincidence for there not to be a genetic link there. I have a huge family myself and have no incidence thank God. Can two children on my husband's side, his first cousin and second cousin mean my son is at an increased risk than normal? Does anyone have any experience or knowledge of it running in families? Thank you