Haih, dengar pasal kidney swelling memang bikin anxious kan! Tapi honestly sayang, ini bukan boleh tanya kat forum je, please go back to your doctor or OB/GYN untuk clarity , especially since they saw it on the scan. Dorang kena explain properly apa exactly they mean, whether it's normal or need follow-up scans. A few of us mums pernah dapat similar notes, tapi every case lain-lain, some resolve on their own, some kena monitor. Your doctor kena give you a proper plan, bukan just "boys sometimes like that" je. Ask them when they want to rescan and apa exactly you should watch for. You deserve proper answers, not guesswork!