What to expect from hair loss after giving birth

Hair shedding after birth is telogen effluvium, a hormonal reset rather than a disease. It usually begins a few months after delivery, peaks, and settles by your baby's first birthday. No shampoo or serum on any shelf prevents it. What you can genuinely do is protect the hair you still have and rule out the medical causes that look the same.

What postpartum hair loss actually is

During pregnancy, high oestrogen holds hairs in their growing phase for longer than usual, which is why so many women describe their pregnancy hair as the best it has ever been. After delivery those hormone levels fall, and all the hairs that were held back enter the shedding phase together. The American Academy of Dermatology attributes the shedding new mothers notice to exactly this drop in oestrogen.

So the hair you are losing was already on loan. It was borrowed, and now it is being returned, in one alarming clump at a time.

Dermatologists call the pattern telogen effluvium. A normal scalp sheds every day without you noticing, and the American Academy of Dermatology puts the usual daily figure at somewhere between 50 and 100 hairs. After birth, months of that ordinary shedding arrive at once, which is what makes the shower drain so frightening. Nothing is wrong with your scalp.

When it starts, peaks and stops

The American Academy of Dermatology describes new mothers seeing noticeable shedding a few months after giving birth, and hair returning to its normal fullness by around the time the child turns one. Many Mamas in Singapore describe the same arc. It starts somewhere in the second to fourth month, it is at its most dramatic for several weeks, then it quietly tapers.

Regrowth has its own awkward stage. Short new hairs stand up along the hairline and refuse to lie flat, and that fuzz is the good news, however little it looks like it in a photograph.

What should not happen is shedding that is still heavy past the first birthday, or a scalp that is visibly thinning in patches rather than overall. The NHS lists several other causes of hair loss that are worth excluding, including iron deficiency and thyroid disease. Patchy loss with smooth bald circles is a different condition altogether and needs a doctor.

Does any shampoo, serum or supplement prevent it?

No. The shedding is driven by a hormonal change inside the follicle, and nothing you put on the outside of your scalp reaches that mechanism or stops it happening. A product can make hair feel thicker, sit better or tangle less. None of that is prevention, and claims about percentages of hair saved after a week of use belong nowhere near a decision about your health.

Spend the money on a blood test instead, if you are going to spend it on anything. Pregnancy hair loss has a different set of causes and is worth reading if the shedding started before you delivered rather than after.

Washing your hair during confinement

Traditional Chinese confinement advises against washing your hair for the month, and plenty of mothers here keep to it with their own mother or a nanny in the flat enforcing it kindly but firmly. Malay and Indian postpartum customs have their own practices around warmth and rest. These traditions exist to protect a woman from cold and from doing too much too soon, and that instinct is sound.

Two facts sit alongside that. Washing your hair does not cause the shedding and skipping the wash does not prevent it, because the trigger is hormonal. And Singapore is not the climate those customs were first written for: a scalp sweating under a towel at 31 degrees Celsius for four weeks gets itchy, and an irritated scalp is its own problem.

Many families land on a middle path. Warm or hot water rather than cold, a quick wash rather than a long one, herbal water boiled with ginger if that is your family's practice, and hair dried thoroughly straight afterwards so you are never sitting in a draught with a wet head. Decide it with your mother-in-law rather than around her.

Humidity, hair ties and the damage you can avoid

Breakage is the part you actually control. Shedding you cannot stop, breakage you can, and in this climate the two get confused constantly. Hair that is sweaty by 10am gets scraped into a tight bun and stays there all day, and that is traction: steady pulling on roots that are already loosening.

The American Academy of Dermatology warns that hairstyles which pull repeatedly on the hair can cause permanent loss over time. So loosen it.

• Use a soft fabric tie or a claw clip rather than a thin elastic band
• Move the position of the bun or ponytail from day to day
• Take it down at home and at night
• Skip chemical straightening, perms and bleach until the shedding settles
• Comb wet hair gently with a wide-tooth comb, since wet hair snaps more easily
• Let hair air dry where you can, which is no hardship at this latitude

Aircon in the office and in the car dries hair out and makes it brittle, which compounds the breakage. A conditioner through the mid-lengths helps the hair you have survive the week. It will not alter the shedding at all.

Iron, thyroid and when to get tested

Blood loss at delivery, a demanding newborn and months of skipped meals add up. HealthHub, the Health Promotion Board's health portal, lists hair loss alongside tiredness, breathlessness and pale skin as signs of iron deficiency anaemia, and a simple blood test settles the question. Postnatal anaemia is common and treatable.

The thyroid is the other one to think about. Thyroid function can change in the months after birth, a condition called postpartum thyroiditis, and the NHS lists hair loss among the signs of an underactive thyroid, together with fatigue, weight gain, constipation and feeling cold. Those symptoms overlap almost perfectly with ordinary new motherhood, which is precisely why they get missed.

Eat for the deficiency rather than for the hair. Red meat, liver, dark leafy vegetables, beans and iron-fortified cereal all help, and vitamin C alongside them improves absorption, while the tea or kopi you drink with the meal reduces it. Foods worth eating while breastfeeding covers the wider postnatal diet.

What to raise at your postnatal check

You already have an appointment booked for this. The postnatal review at six to eight weeks, whether at your polyclinic, your gynaecologist or KK Women's and Children's Hospital, is the natural place to raise hair loss, and KKH treats the postnatal check as the moment to pick up exactly these lingering problems. Bring it up even if it feels vain. It takes 30 seconds, and a blood test can usually be arranged from there.

Ask for a referral to a dermatologist if the loss is patchy, if your scalp is sore, red or scaly, or if nothing has improved by the time your baby is walking. The shedding often lands at the same time as a stack of other unglamorous recoveries, from pelvic and back pain to swollen ankles that will not go down.

Take a photograph of your hairline this week and another one in two months. When you are losing a handful every shower, the only reliable way to see that the tide has turned is a picture you took before it did.