How many grafts do I need?

The number of grafts you need depends on how much of your scalp is thinning, how dense you want the result to look, and how many grafts your donor area can safely give. Doctors often start from the pattern of your hair loss, usually described on the Norwood scale, then adjust for your hair and scalp. The ranges below are general planning ranges to help you understand a consultation. Your own graft number can only be decided by a qualified doctor who examines you in person.

What a graft is

A graft is a follicular unit: a small natural group of usually one to four hairs, taken from the back and sides of the head and moved to a thinning area. In a study of 580 Indian men, the scalp donor area averaged about 1.8 hairs per follicular unit. So 1,000 grafts is roughly 1,800 hairs, although this varies from person to person.

Hair from the back and sides of the head is used because it tends to resist the hormone-driven thinning that causes male pattern baldness. That is also why that area is called the donor area, and why it is limited.

The Norwood scale in words

The Norwood scale, published by Dr O'Tar Norwood in 1975 and often called the Hamilton-Norwood scale, sorts male pattern hair loss into seven stages. Doctors also use variants: "A" types, where the hairline recedes evenly from front to back, and "vertex" types, where the crown thins early.

• Stage 1: little or no recession. The hairline sits close to where it was in the late teens.
• Stage 2: slight recession at the temples, forming a shallow M.
• Stage 3: deeper recession at both temples. This is usually the first stage counted as balding. In stage 3 vertex, the temples recede and the crown also starts to thin.
• Stage 4: the front recedes further and the crown is thin or bald, with a band of hair still separating the two areas across the top of the head.
• Stage 5: the same pattern as stage 4, but the band across the top is narrower and thinner, and both bald areas are larger.
• Stage 6: the band has gone, and the front and crown have joined into one bald area. Hair remains at the sides and back.
• Stage 7: only a horseshoe of hair remains around the sides and back, and it may itself be thinner and lower on the head.

Women usually lose hair differently, with diffuse thinning over the top while the front hairline stays. That pattern is described on other scales, and planning is different. See our female hair transplant guide.

General planning ranges by stage

The ranges below are rounded from one surgeon's widely cited published planning table for a first session at each stage. They are wide on purpose. For stages 4 to 7, the top of each range allows for treating the crown as well. A second session months later can add more.

For the estimated cost at each stage, see hair transplant cost by grade.

Why donor supply is the real limit

You cannot grow more donor hair, so every graft taken is spent for good. Doctors take only a share of the grafts in the donor area, spaced out, so the back of the head does not look thin.

A 2019 study of 580 Indian men measured this. Taking a quarter of the follicular units, it estimated that an average patient could give about 2,100 grafts from a conservative donor zone, about 3,100 from a standard zone and about 3,600 from an extended zone in one sitting. Across two sittings the estimates rose to about 3,600, 5,400 and 6,300. These are averages. Your own supply may be higher or lower.

This matters most at stages 6 and 7. The bald area can be larger than the donor area can ever cover at full density. Doctors then plan for the most visible area, usually the front, and accept lighter coverage further back. Taking too many grafts can leave the donor area patchy or thin, and that damage is hard to repair. A plan that seems to promise full coverage for advanced loss in one session deserves a second opinion. Our safety guide covers over-harvesting and other risks.

Hairline versus crown

The hairline frames the face, so doctors usually give it priority. It needs careful design: single-hair grafts at the very front and denser grafts behind, following the natural angles. A hairline set too low can look unnatural later, as the hair behind it keeps thinning with age. That is why doctors are often cautious about low, straight hairlines in young men.

The crown usually needs more grafts than its size suggests. Hair there grows out from a whorl in several directions, so it takes a lot of grafts to look dense. Crown loss also tends to keep spreading. Many doctors restore the front first and treat the crown later, if donor supply allows.

Your age matters. Indian dermatology guidelines advise caution in very young patients, because early hair loss is still evolving and the final pattern is hard to predict. Most patients also need continued medical treatment for the hair they have not transplanted, because pattern hair loss keeps progressing. Our guide to transplant versus other treatments explains the options.

Beard and moustache grafts

Beard transplants use the same principle. Grafts, usually from the back of the scalp, are placed into the beard, moustache or sideburns. The International Society of Hair Restoration Surgery describes beard work ranging from a few hundred grafts to more than 2,000.

• Patchy areas, goatee or moustache: often a few hundred to about 1,000 grafts. Our estimated total is ₹25,000 to ₹70,000.
• Fuller beard coverage: often about 1,500 to 2,500 grafts. Our estimated total is ₹55,000 to ₹1.75 lakh.

Beard grafts come from the same limited donor supply as scalp grafts. If you may want scalp work later, discuss both with your doctor before you commit. See the beard transplant cost guide.

From graft count to cost

Once you have a graft estimate, you can read off an estimated cost. For example, 2,000 to 2,500 FUE grafts is estimated at ₹60,000 to ₹1.5 lakh, excluding GST. The cost per graft guide has the full table by method and graft count. The India cost overview shows how estimates vary by city.

How to use this at a consultation

1. Ask which Norwood stage the doctor thinks you are, and whether your loss looks stable or active.
2. Ask how many grafts they plan, for which areas, and what density they are aiming for.
3. Ask how many grafts your donor area can give over your lifetime, and how many this session will use.
4. Ask what they would plan for later if your hair loss continues.
5. Ask whether they recommend medical treatment alongside surgery.

If two doctors give very different graft numbers, ask each to explain the areas and density behind the figure. The difference is often in the plan, not the arithmetic.