The topic at hand is about experiencing hair loss after ileostomy surgery, which might be linked to a vitamin B12 deficiency. The person who started the discussion noticed significant hair thinning and weight loss a few months after their surgery and is seeking advice from others who might have faced similar issues. Here are some insights and advice shared by others:

1. Normal post-trauma response (telogen effluvium)
- It's common for major physical stress, like surgery or rapid weight changes, to trigger a condition called telogen effluvium, where hair starts shedding a few months after the event. This usually resolves itself within 6-12 months as the body recovers, so patience is key.

2. Medication-related thinning
- Some medications used in IBD or ostomy care, such as Prednisolone, Methotrexate, and others, are known to cause hair thinning. Many believe these medications might be more responsible for hair loss than a B12 deficiency.

3. B12 and general nutrition
- Since an ileostomy can affect B12 absorption, regular B12 supplementation is often recommended. Low B12 levels can impact hair health, cause fatigue, and lead to neuropathy.
- It's important to follow safe, doctor-supervised dosing to avoid issues like severe eye dryness and neuropathy.
- A balanced diet rich in protein, along with a standard multivitamin, is suggested over high-dose single supplements.

4. Hair, skin & nail supplements
- Supplements like Nature Made “Hair, Skin & Nails” have been positively reviewed for helping with hair shedding, nail ridges, and dry skin. It's important to check the dosage requirements for these supplements.

5. Hair care & cosmetic strategies
- Cutting very thin or damaged hair short can help prevent breakage and promote healthy regrowth.
- Using thickening products like Nioxin shampoo and conditioner can improve the appearance of hair while waiting for regrowth.

6. Emotional support
- Many people have shared similar experiences of hair loss a few months after surgery, followed by full or near-full regrowth, offering reassurance that the hair will likely come back.