Post-Partum Hair Loss

Clinical Scenario

Isabelle Smith, 32, books a video consultation about hair loss. She delivered her first child 5 months ago via forceps-assisted delivery with a third-degree perineal tear. She is breastfeeding and was started on desogestrel (progesterone-only pill) postpartum. She has noticed significant hair shedding for the past 6 weeks and is finding clumps in the shower and on her pillow. She is exhausted from sleep deprivation, adjusting to motherhood, and now terrified that she is going bald. She is also wondering whether the desogestrel is causing the hair loss.

What This Case Tests

Diagnosing postpartum telogen effluvium as a normal physiological process; addressing the desogestrel concern (progestogen-only contraceptives can occasionally contribute to hair loss but postpartum hormonal shift is the overwhelmingly likely cause); providing reassurance with a clear timeline for regrowth; screening for postnatal depression in a distressed new mother; supporting the broader adjustment to parenthood.

Common Mistakes Trainees Make

The three most common mistakes are: ordering extensive investigations for a classic postpartum presentation (postpartum telogen effluvium at 5 months is textbook timing and rarely requires blood tests unless there are atypical features), immediately stopping the desogestrel without considering the alternative explanations and the contraceptive implications, and focusing only on the hair loss without screening for postnatal mental health — Isabelle is exhausted, distressed, and adjusting to a difficult delivery and new motherhood.

The Consultation Challenge

Isabelle has postpartum telogen effluvium — this is a normal, predictable physiological process. During pregnancy, elevated oestrogen keeps hair in the growth phase, reducing normal daily shedding. After delivery, the hormonal drop triggers synchronised shedding of all the hair that was retained during pregnancy. This typically begins 3-5 months postpartum and lasts 3-6 months. Isabelle's timeline (shedding at 5 months post-delivery) is textbook.

Start by reassuring her that this is normal. New mothers are already overwhelmed, and adding "am I going bald?" to the list of worries is distressing. "What you're experiencing is incredibly common after having a baby. During pregnancy, your hormones kept your hair growing beautifully. Now those hormones have dropped, all the extra hair is coming out at once. It looks alarming, but it's temporary."

Address the desogestrel question. Hair loss is listed as an uncommon side effect of progestogen-only contraceptives in the BNF. However, the timing and pattern are entirely consistent with postpartum telogen effluvium, which would have occurred regardless of contraception. It is difficult to separate the two contributions when they overlap. The pragmatic approach: if Isabelle is otherwise happy with the desogestrel and it is providing effective contraception, do not stop it based on this presentation. If she has other reasons for wanting to change, discuss alternatives.

Screening for postnatal depression is essential. Isabelle had a difficult delivery (forceps, third-degree tear), is sleep-deprived, and is now distressed about her appearance. These are risk factors for postnatal mood disturbance. Ask gently: "How are you doing more generally? Are you getting any sleep? Are you enjoying time with the baby, or does it all feel like a struggle?"

Check whether iron studies are appropriate. After a delivery with significant perineal trauma and ongoing breastfeeding, iron deficiency is possible and would compound the telogen effluvium. If she is experiencing fatigue beyond normal new-parent exhaustion, check ferritin, FBC, and TFTs.

Set realistic expectations: the shedding will stop within the next few months, and regrowth will follow. By 12-18 months postpartum, her hair should be back to its normal density. In the meantime, gentle hair handling (no tight styles, avoid heat, wide-tooth comb) and a balanced diet support recovery.

Time check: Spend the first 3 minutes hearing her concerns and providing immediate reassurance. Address the desogestrel question by minute 5. Screen for postnatal mood between minutes 6-7. Determine whether investigations are needed by minute 9. Use the remaining time for management advice, timeline expectations, and follow-up.

How Examiners Mark This Case

Data Gathering and Diagnosis: Examiners assess whether you recognise the classic presentation of postpartum telogen effluvium (timing, diffuse pattern, relationship to delivery), review the desogestrel medication as a potential contributor, screen for atypical features that would warrant investigation (focal loss, scalp changes, signs of thyroid disease or anaemia), and assess the delivery history and current wellbeing. Screening for postnatal depression demonstrates holistic care.

Clinical Management and Medical Complexity: Examiners expect evidence-based reassurance with a clear timeline for resolution, a proportionate response to the desogestrel concern (not stopping effective contraception based on a coincidental presentation), and appropriate investigation only if indicated (ferritin if symptomatic anaemia, TFTs if atypical features). Over-investigation of a classic presentation scores poorly.

Relating to Others: Examiners assess whether you normalise the hair loss effectively, address the distress with empathy, screen for postnatal mood, and support the broader adjustment to motherhood. Isabelle should leave feeling reassured that her hair will recover, that the desogestrel is likely not the cause, and that someone has checked on her emotional wellbeing.

Example Opening

Strong opening: "Hello Isabelle, I can see you're worried about your hair. Before anything else, I want to reassure you — what you're describing is really, really common after having a baby. But I can understand why it's alarming when you're already dealing with so much. Tell me what you've been noticing."

When addressing the desogestrel: "Hair loss is listed as a possible side effect of the mini-pill, but honestly, the timing of your shedding fits perfectly with the normal postpartum pattern. I'd be very surprised if the pill is the main cause. If you're otherwise happy with it, I'd suggest keeping it for now and reassessing in a few months once the postpartum shedding settles."

When screening for postnatal mood: "I also want to check in on how you're doing more generally. You had a tough delivery, you're not sleeping, and now this on top of everything. How are you feeling in yourself?"

Avoid: "It'll grow back — don't worry about it." (Minimises distress without providing the explanation or timeline she needs).

How This Appears in the SCA

Postpartum hair loss tests your ability to diagnose a normal physiological process, provide evidence-based reassurance, address a medication concern proportionately, and screen for postnatal mental health in a distressed new mother. The examiner values trainees who can recognise normality and avoid over-investigation while remaining holistic in their assessment.

Key Statistic

Postpartum telogen effluvium affects approximately 40-50% of women, typically beginning 3-5 months after delivery and resolving within 6-12 months. It is a physiological process related to the postpartum hormonal shift and does not require treatment in most cases. Full hair regrowth is expected within 12-18 months.

Relevant Guidelines

• NICE CG192: Antenatal and postnatal mental health
• NICE CKS: Alopecia
• FSRH guideline on postpartum contraception.

Frequently Asked Questions

What causes postpartum hair loss and when does it typically start?

During pregnancy, elevated oestrogen prolongs the growth phase of hair, reducing normal daily shedding. After delivery, the rapid drop in oestrogen triggers synchronised entry of these retained hairs into the telogen (resting) phase, followed by shedding 2-3 months later. This typically begins 3-5 months postpartum and lasts 3-6 months. It is a normal physiological process, not a sign of illness or nutritional deficiency.

Should I stop the desogestrel if the patient thinks it is causing hair loss?

Not automatically. Progestogen-only contraceptives can occasionally cause hair thinning, but at 5 months postpartum, the overwhelmingly likely cause is postpartum telogen effluvium. Stopping effective contraception based on a coincidental presentation is poor management. If the patient has other reasons for wanting to change contraception, discuss alternatives. Otherwise, recommend continuing and reassessing once the postpartum shedding resolves.

When should I investigate postpartum hair loss rather than reassuring?

Investigate if: the pattern is atypical (focal or patchy rather than diffuse), there are signs of thyroid disease (weight change, temperature intolerance, fatigue beyond normal), symptoms suggest iron deficiency (fatigue, breathlessness, pallor — plausible after delivery with significant blood loss), the hair loss has not improved by 12 months postpartum, or there are scalp changes (inflammation, scarring). For classic postpartum telogen effluvium, investigation is not routinely needed.

How do I screen for postnatal depression during a dermatology consultation?

Integrate it naturally: "I know the hair loss is why you called, but I also want to check — how are you doing more generally? New motherhood is tough, especially after a difficult delivery. Are you getting any support? How are you feeling in yourself?" The PHQ-2 (two screening questions about low mood and loss of interest) can be asked conversationally. If concerns arise, offer a dedicated follow-up for assessment and support.

What timeline should I give for postpartum hair regrowth?

Shedding typically stops by 6-12 months postpartum. New hair growth follows immediately but is initially fine and short. Full return to pre-pregnancy density takes approximately 12-18 months. Setting this timeline prevents premature anxiety about persistent loss. Reassure that the total amount of hair will return to normal — the shedding is the body releasing hair that was retained during pregnancy, not new hair loss.