Hai! I don't have firsthand experience with BTL myself, tapi a few of my mum friends who've done it said it's usually done under local or general anaesthesia depending on the clinic, best to ask your doctor which option they prefer sebab it varies. Recovery wise, most said rest for a few days je, light bleeding is normal, and period cycles might take a couple months to settle, so don't panic kalau irregular at first. Definitely tanya your gynaecologist about the specific procedure they're doing and what to expect post-op, sebab setiap orang's experience boleh berbeda!