My usually taciturn peer of 7 years (let's say Anna) overshares when explaining her sick leave or coming back from one. It's a fairly recent development of about one year.
It's not necessary to tell your employer or your colleagues the exact reason for your sick leave in Austria. Still, Anna informs the whole team every time.
Yesterday she came in after staying at home with her sick two-year-old. Our boss, one more colleague and I were having a jour fix and snacking (sandwiches, muesli, sweets). When Anna joined us, she told us everything about her kid's stomach flu, including how much and when they had to poo. I think it was impolite and inconsiderate.
I wish Anna was more discreet about her and her family's illnesses. I already mentioned to her once that giving the exact reason for a sick leave is legally not required. We all have children and spouses and nobody really talks about their (or own) medical conditions in the office. Definitely not about toilet business when others are eating.
How can I address the issue without making the uncomfortable situation even worse?