The cactus is considered an unpretentious and hardy plant, but even it has a weak spot.
Often, wilting is not enough. The houseplant becomes covered in wrinkles, which eloquently signal a problem.
There are two reasons for this phenomenon. All of them are quite serious, so gardeners have to try hard to save the "green pet".
Cactus wilting is related to the roots. The base of the plant slowly rots, which affects the above-ground part. This can be caused by a disease.
Root problems occur when there is no drainage. Moisture accumulates at the bottom of the pot, and the underground shoots are at risk.
Rotting of the rhizome is not a fast process, but it is stable. If you do not waste time, the plant can be saved. It is necessary to transplant into new soil and remove damaged roots.
If the rhizome is almost completely rotten, there is still a chance. There are few, but you can try. If the top is intact, then you need to remove the affected areas. Sometimes it is necessary to remove up to 90-95% of the damaged tissue.