Synopsis
Prevent and detect bipolar relapse across pregnancy, birth and the early postnatal transition by combining an individual episode history, carefully planned prophylaxis, sleep protection, rapid specialist access and a written response to early warning signs.
- Bipolar disorder has a heightened risk of relapse and first presentation after birth; prevention begins during preconception or antenatal care rather than after symptoms become unmistakable.
- Map previous mania, depression, mixed states, psychosis, admissions, postpartum episodes, time to deterioration after stopping treatment and the earliest signs recognised by the person or family.
- Do not reduce relapse planning to a drug choice: sleep disruption, feeding arrangements, analgesia, social support, obstetric complications and service handovers can determine whether protection works.
- If lithium is continued in pregnancy, NICE requires specialist counselling and increasingly frequent plasma monitoring, including weekly levels from 36 weeks, plus hydration and hospital-birth planning.
- NICE recommends stopping lithium during labour and checking the plasma level 12 hours after the last dose; prescribing ownership and restart timing must be agreed before labour begins.
- When lithium is stopped in pregnancy or breastfeeding is planned, NICE advises offering antipsychotic prophylaxis after an individual specialist discussion.
- Protect a consolidated sleep period after birth while respecting feeding preferences; another adult can assist with settling, expressed milk or formula when chosen, and early-morning care.
- A written plan should name symptoms that trigger same-day contact, the urgent team and telephone number, medicine actions, baby supervision and the threshold for mother and baby unit assessment.
- Review frequently in the first postnatal weeks and after any sleep collapse, missed medication, physical illness, feeding change or family concern, because deterioration may accelerate over hours or days.
Key red flags
Complete or near-complete loss of sleep without fatigue, increasingly pressured speech, grandiosity or unusual goal-directed activity may precede dangerous postnatal mania.
Delusions involving the baby, command hallucinations, severe confusion, disorganisation or rapidly fluctuating affect requires emergency containment and assessment for psychiatric and physical causes.
Mixed activation with despair, agitation, impulsivity or suicidal thinking can carry high risk even when the person does not appear slowed or conventionally depressed.
Abrupt cessation of lithium or another effective prophylactic medicine, particularly near delivery, should trigger rapid prescriber review because withdrawal and untreated illness both alter relapse risk.
Dehydration, vomiting, pre-eclampsia, renal impairment or interacting medicines in a person taking lithium may produce toxicity and requires an urgent plasma level and medical assessment.
Investigation priorities
Define episode polarity, severity, postpartum timing, previous response and relapse after withdrawal.
Management branches
A pregnant person has bipolar disorder, previous postpartum psychosis or another strong bipolar relapse history.
- Refer to specialist perinatal mental health care and verify diagnosis, episode pattern, previous effective treatments and consequences of discontinuation.
- Agree prophylaxis through an informed comparison of illness, fetal, neonatal and feeding considerations, avoiding abrupt or unsupported medicine changes.
- Record early signs, contact frequency, sleep and feeding contingencies, labour medicine instructions and the named postnatal prescriber in a shared plan.