Short answer
A sense of fullness or stretch is normal. Sharp pain, burning or the feeling that you have to force it means the toy is too big for right now. Stop, add lube, or switch to something smaller. Comfort can grow gradually with relaxation and practice, so size up in small steps. If pain continues even with small toys, talk to a clinician.
Read the full guideHow to Choose a Dildo: Size, Shape and Material GuideLearn how to choose a dildo that suits your body: realistic sizing tips, curved vs straight shapes, body-safe materials, suction cups and beginner picks. Updated November 9, 2026 · All questions