Does postpartum thyroiditis cause low mood after birth?

Postpartum thyroiditis is inflammation of the thyroid after birth. Thyroid activity may first rise and later fall. During reduced thyroid activity, people may notice low energy, slowed thinking, feeling unusually cold, constipation, dry skin, and low mood. The symptoms can resemble depression or be present at the same time.

Sleep deprivation, pain, feeding demands, anaemia, anxiety, and the emotional adjustment to parenthood can also influence mood. A clinician can review timing, symptoms, examination findings, and thyroid blood tests to separate overlapping contributors.

Tell your GP, midwife, or obstetric clinician about mood changes together with physical symptoms such as fatigue, palpitations, heat or cold intolerance, or changes in bowel habits. They can decide whether thyroid testing or other checks are needed and discuss treatment options.

Ask someone reliable to help with meals, household tasks, or baby care while you recover. Keep a brief record of mood, sleep, physical symptoms, and medicines. Do not alter prescribed thyroid treatment without medical guidance.

Seek urgent help if you have thoughts of harming yourself or your baby, cannot stay safe, become severely confused or agitated, or hear or see things others do not. Contact emergency services or attend an emergency department, with a trusted person supporting you if possible.

Arrange a timely appointment when low mood persists, worsens, or makes eating, sleeping, bonding, or daily care difficult. Physical symptoms can provide useful clues, but you do not need to wait for them before asking for mental-health support.

Could thyroiditis be contributing to my mood? Which symptoms should I track? Do I need thyroid blood tests or a mental-health assessment? What support is available if I am breastfeeding or caring for my baby?