Autistic girls tended to start puberty about nine and a half months earlier than neurotypical girls. Your daughter with autism may benefit from visuals when discussing her period. Some parents have found social stories to be an effective aid for discussing topics like menstruation. Parents can Google the topic and search for social stories to use with their daughters.
Some of the things you can do can be but not limited to the below;
• Reassure her about body changes. “When your body changes from a little kid body to a grown up body, these changes will happen.”
• Reassure her about blood.
• Introduce sanitary products.
• Talk about public versus private conversations.
• Showing her practically how to change sanitary products