Whether your sister is younger, older, near, or far, her birthday is that one special day out of the year when you’ll want to show her just how much she means to you. And a personal message in a lovely birthday card can say it best.

After choosing the prefect card, you’ll want to add your very own wishes, making it that much more meaningful and thoughtful. Of course, this will require some heartfelt reflection. You’ll want to carefully think back on your great times together, her unique traits, and what your sisterly relationship means to you.

By the way, if you’d like yet another reason besides your sister’s birthday to send her a warm message, remember Siblings Day, which is joyously celebrated every year on April 10.

If you’re now ready to get started on your personal message but still need a little help with what to write in a birthday card for your sister, the editors at Blue Mountain have compiled a list of suggestions and ideas just for you. Some are sweet and touching. Others are silly and cute. But they all share the very same message: “I love you, sis.”

Without further ado, here are several ideas for birthday wishes that are sure to warm your sister’s heart and make her day.

• Sis, you’re the one who made my childhood so happy and special. Thanks for all the great times we shared. I love you! Happy Birthday.
• I feel so blessed to have a sister like you. After all, the bond I share with you, I don’t share with anyone else in this world. Wishing you the most fantastic birthday ever!
• A sister like you is a gift from heaven. Thanks for being such a wonderful gift. You’re the best. Happy birthday, sis!
• Hey, (name)! You’re not getting older. You’re just another year closer to looking like Mom. Happy birthday, beautiful!
• You’re the most wonderful present our parents could have ever given me. Wishing you a birthday full of laughter and joy. Happy to you, sis!
• Happy birthday, (name)! I’m so proud to have you as my sister, my support, and my best friend. Wishing you a beautiful day. Love you!
• Happy birthday to my favorite sister! Ok, so maybe you’re my only sister. But you’re still my favorite, hands down.
• A sister is someone who knows everything about you and loves you anyway. Thanks for being there for me through the years. Sisters for life! Happy birthday.
• You’ve filled my childhood with love, laughter, and happiness. I’d like to fill your special day with the same. You’re the best, sis. Happy birthday!
• For all the giggles, tears, pillow fights, and fun we’ve shared, here’s to our bond…and to your happy birthday. Love you, sis!