Ceiling designs can be different:

[zihadhosenjm40]

bathroom design in Khrushchevka with the use of paints and varnishes is extremely rare today. Such technologies have sunk into oblivion due to impracticality;
the ceiling and walls can be decorated with PVC panels, as in the photo. PVC panels are very popular today, as they have a number of advantages: they are practical, wear-resistant, and cost a little less than ceramic tiles. In addition, finishing with PVC panels, as in the photo, looks very advantageous;
ceramic tiles. Today you can buy wall tiles of standard and unique sizes. If you do not want to overpay for originality, you can prefer the models 30 * 30, 30 * 40, 30 * 60, which are familiar to domestic buyers. However, when choosing this finishing material for the walls of a bathroom of 5, 6 or 7 sq. m, you should choose smaller tiles. Note that larger tiles are thicker and are attached with a more significant amount of glue. In a tiny room, this is unacceptable, since a thick layer of finishing on the walls will somewhat reduce the free space of the room.
If there is a window on one of the walls adjacent to the kitchen, it is worth boarding it up. This will make the design more attractive.

Ceiling
If the bathroom in a Khrushchevka is combined, then its linkedin data can be decorated using different technologies. The main rule is that the finishing material must be resistant to the negative effects of moisture and steam.

a stretch ceiling is made in a short time and allows you to organize spotlights. And if you use a glossy film with high reflectivity, you will create the effect of visual expansion of space. In the photo below is a bathroom interior with such a design. But for such construction, you will need to build a frame that will "eat up" some space;
suspended structures made of moisture-resistant plasterboard and aluminum frame allow you to quickly level the surface of the base and veil its flaws. You can build in spotlights in the form of an original pattern, paint different tiers in several colors;
PVC panels are good because they do not require the construction of a supporting frame. This means that a ceiling with plastic panels will not take up valuable centimeters of space in a small bathroom;
If you don't want to lose extra centimeters, the ceiling can be decorated using a material such as ceramic tiles. You can see the renovation of a Khrushchev-era bathroom using such material in the photo.
Bath or corner shower
Many people do not understand why a standard bathtub should be installed in a modest room, when a compact shower cabin can be preferred. The advantages and disadvantages of a corner shower cabin are described in the table:

Advantages Flaws
The corner shower is compact, which means there is room for a washing machine in the bathroom the cost is higher than that of a bathtub