I had a hysterectomy about 12 years ago and noticed hair loss after about 18 months.
The hair growth cycle is really long so it will seem to have phases when the loss is worse.......just when you think it's slowed down, off it goes again. However although my hair is noticeably thinner (especially to me!!) I still have a reasonable covering.
I have asked doctors about it on a number of occasions and there's not a lot they can do. One said I could try Minoxidil 2%. Apparently they used to be able to prescribe it, but can't now due to cost. I bought some but haven't tried it - not keen on things that are systemic although I'm currently experimenting with extra biotin but, quite honestly, I haven't noticed any difference and my nails are still splitting and flaking.
Anyway, this is what works for me:
First of all a good multi-vitamin. I've taken Menopace for years and it does seem to contain all the things we are recommended for post-menopause complaints.
I have used Lee Stafford Hair Growth shampoo and conditioner plus the leave-in treatment for a long time and I think it's the best, though not the cheapest (often on 3-for-2 in Boots). There are a number of products in the range but these three are the only ones that are worth buying, in my personal opinion.
I also would not be without Vatika Egg Protein hair mask which I buy from Amazon. It's not expensive and I think it's brilliant. My hair is fine and dry these days and all the styling products I use to give it some body, don't help with the condition, so this is a big help and seems to add body as well. I also use L'Oreal Elvive Extraordinary Oil leave-in-cream - you only need a tiny bit - which gives it extra condition and shine.
For styling I have a cupboard full of products but what I'm currently finding works well is VO5 Plump It Up blow dry lotion plus almost any lifting mousse. I've recently found that if I have time to let my hair dry naturally, then apply the lotion and mousse, it's easier to get body into it.
I have my hair coloured and highlighted by my hairdresser and a layered short-ish cut seems to work the best for me.
None of this is cheap! But if my hair looks ok, I feel ok, so I do tend to prioritise it.
I hope this is of some help!