First, I don't know the market situation of postpartum recovery. It may not be accurate to reply only based on my common sense and speculation, and it is for reference only.
Second, as far as I know, postpartum recovery may involve at least three contents: first, the recovery of postpartum physical appearance; The second is the recovery of the function of internal organs after delivery; The third is the recovery of postpartum mental state. Among them, the market demand for the first point may be even greater.
Third, as far as I know, most people don't know much about postpartum recovery and pay insufficient attention to it. They only stay in the situation of natural recovery, and only a few people may intervene artificially. In fact, most people's postpartum recovery can reach a better state, so there is no need to care too much.
Fourth, according to my guess, there should be a market demand for postpartum recovery (even if nail art is booming, there will definitely be a market after postpartum recovery), but it should be much smaller than the potential market space for weight loss and beauty (some people think it is unnecessary, others think it is necessary, but in order to save money, such consumption will not be made). The good news is that I don't seem to have seen such a postpartum recovery institution, which shows that there is basically no competition in this field. If relevant institutions enter, there should be a lot of profit space.
Fifth, to sum up, I think there is market space for postpartum recovery, but the market demand may not be great. If you want to try, if the profit is acceptable, you can open one, but only in big cities, not in towns and villages; If you want to make a profit and get higher income, I suggest not to start postpartum recovery. It may be safer to consider other entrepreneurial directions.
The above suggestions are for reference only.