
Planning
How many grafts do I need for a hair transplant?
Typical graft numbers for each Norwood stage, what changes yours, from donor strength to hair thickness and curl, and why one session has a safe limit.
· 8 min read
Planning
In this guide
Who is likely to be a good candidate for a hair transplant: stable hair loss, a strong donor area and realistic goals, and when it is wiser to wait.
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Send four photos. Our lead surgeon replies with your plan, a graft estimate and the full price, in writing.
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You are likely to be a good candidate for a hair transplant if your hair loss is stable, your donor area is strong and your expectations are realistic. It may be wiser to wait, or to try medication first, if you are young and still losing hair quickly. The same applies if your thinning is spread evenly across the scalp, or if its cause is not yet clear.
| Your situation | What it usually means |
|---|---|
| Receding temples or a thinning crown, stable for a year or more, with thick hair at the back | You are likely to be a good candidate |
| Under 25 and losing hair faster each year | Medication first, then reassess |
| Thinning on top with hair still there, stable, and thick hair at the back | Often suits DHI, placed between your existing hairs |
| Even thinning over the whole top, with thinning at the sides too | The donor area may be too weak; medication first |
| Patchy bald spots, or a red, itchy or scaly scalp | See a dermatologist before any surgery |
| Sudden heavy shedding in the last few months | Often temporary; find the cause first |
| A widening parting (women) | Check the cause first; surgery suits some women |
Count yours. The graft calculator shows your stage on a 3D head, and whether your plan needs one session or two.
This table is a guide, not a diagnosis. Your surgeon decides from your photos and, later, an examination.
There is no single right age, but hair loss in young men often changes quickly. A transplant done too early can use up donor hair on a hairline that later looks out of place, as loss continues behind it. Doctors often suggest waiting at least a year, usually with medication, and ideally until after 25.
Stability matters more than your birthday. Signs that your hair loss is settling include little change in your photos over the past year or two, and a family pattern you can predict. At the other end, age alone rarely rules anyone out: your general health and donor area matter more.
Your donor area is your hair bank. During your assessment, your surgeon looks at:
Your surgeon checks this with a magnified scalp examination, called trichoscopy. Most donor areas give about 4,000–6,000 grafts in a lifetime. A weak donor area limits what any plan can do, whatever the technique. Our guide to how many grafts you need explains how this shapes a plan.
Diffuse thinning means hair thins evenly over the top of the head, without a clear bald area. It needs careful planning. Grafts go in between existing hairs, which can shed for a while after surgery, and the donor area may be thinning as well.
When the donor area is strong and the loss is stable, often with the help of medication, our surgeons use DHI here. The implanter places each graft precisely between the hairs you still have. DHI can be done without shaving, but with diffuse thinning our surgeons usually advise against it: long hair can stick to the crusts and pull grafts out, which raises the risk of infection and complications. For some people, medication alone is the better choice, and your surgeon will tell you if that applies to you.
Women’s hair loss usually looks different from men’s. It is often a widening parting or general thinning on top, with the hairline kept; doctors often describe it with the Ludwig scale. If hair is sparse all over, there may not be enough healthy donor hair to move.
Before surgery, the cause needs checking. Thyroid problems, low iron, hormonal changes, recent illness or childbirth and tight hairstyles can all cause hair loss.
Women who are often good candidates include those with a high hairline or stable hair loss in one area. Loss from old scars, or from years of tight hairstyles that has now stopped, can also suit surgery. For women, our surgeons usually use DHI, which places grafts between existing hairs. Women have a higher risk of temporary shedding after surgery, too. See our women’s hair transplant page.
Tell your surgeon about every condition and medicine, including supplements. Some need checking or controlling before surgery:
Some types of hair loss are not suited to a transplant while they are active. Examples are patchy hair loss (alopecia areata) and scarring hair loss, where inflammation destroys the hair roots. Sudden heavy shedding after illness, stress, weight loss or low iron often grows back without surgery.
If you are not sure why you are losing hair, see your own doctor or a dermatologist first. If worry about your hair is affecting your daily life, talking to your doctor can help too.
A good result looks natural and suits your age. It is not the density you had at 18 across the whole scalp. Your donor supply is limited, so the plan puts grafts where they make the biggest difference, usually the front first.
What a transplant can do
What it cannot do
There are limits on our side too. We never take more than 5,000 grafts in one session, for anyone. At Norwood 6–7, and in some Norwood 5 cases, we always plan two sessions: the hairline and front first, then the crown at least 8–9 months later. Our guide to how many grafts you need explains why.
Results take time. New growth starts at about 3–4 months, and most of the result shows at 12 months. Some people choose a second session later.
Transplanted hair usually keeps growing for life, because it comes from an area that resists pattern hair loss. Your other hair can keep thinning, which can leave gaps behind a transplant over time.
Your surgeon may discuss medication such as finasteride or minoxidil to slow further loss. These work only for as long as you use them, and they can have side effects, which your doctor will explain. Some are not suitable for women who are or may become pregnant.
If your own hair around a transplant does fall out later, often because medication was stopped, a second procedure may be possible. Our surgeons usually use DHI for it, placing grafts between the hair that is left.
PRP is another option some people use to support their own hair. Read more about PRP treatment.
It is usually wiser to wait, or to start with medication, if:
Waiting is not a failure. It often protects your donor hair for a stronger plan later.
Send four photos for your free plan. If a transplant is not the right step for you yet, your surgeon will tell you and explain what might help instead. You can also browse our FAQ.

Planning
Typical graft numbers for each Norwood stage, what changes yours, from donor strength to hair thickness and curl, and why one session has a safe limit.
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Techniques
FUE and DHI take grafts out the same way and differ in how they go back in: when our surgeons use each, how they choose at the hairline, what hybrid means.
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Medicines
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Send four photos. Our lead surgeon replies with a straight answer: your plan, graft estimate and full price if surgery suits you, or what to try first if it doesn’t. Usually within 24 hours, and free.
Like any surgery, a hair transplant has risks. They include infection, scarring, shock loss and grafts that grow poorly. Read about the risks