Dragon fruit cactus just got checked.
This looks like a healthy dragon fruit cactus that is still in its training phase. The stem is firm, green, and actively growing upward on a support, with no clear signs of rot, collapse, pest damage, or nutrient burn in the photo. Since you were gifted it and have not grown one before, the main issue is not a disease but making sure it gets the right support, light, and watering so it can thicken up and branch properly.
What to do today
Keep it supported, give it bright light, and water only when the soil dries well. Dragon fruit usually does best when trained like a climbing cactus, not left to sprawl.
Also possible, but less likely
What would prove it
Train and observe growth
Watch for firm new growth and make sure the stem stays upright and dry at the base. If it softens, yellows, or wrinkles badly, that would point to watering or root trouble.
Turn this into a recovery case
One photo gives a diagnosis. Tracking proves whether the plant is recovering.
Don’t leave the diagnosis hanging 🌱
Save it now, then use the next photo to confirm if this was the right call.
Create account & save plant 🌱