Vomiting on the first day of your period: treatment and next steps

Hormone-like chemicals released during menstruation can tighten the womb and also affect the gut, causing nausea, loose stools, or vomiting. Severe cramps, headache, or a migraine may add to the nausea. A stomach infection or food-related illness can happen at the same time, so fever, diarrhoea, or illness in other people is useful context. Repeated vomiting is not something to dismiss as a normal period symptom.

Rest somewhere cool and take small, frequent sips of water or an oral rehydration drink. Once fluids stay down, try bland foods such as toast, rice, or soup. A heat pad may ease cramps. A pharmacist or clinician can advise whether an anti-inflammatory pain reliever or anti-sickness medicine is suitable for you; some medicines are unsafe with certain stomach, kidney, bleeding, or pregnancy concerns. Track the timing of vomiting, bleeding, pain, fever, and urine output.

Get urgent help for blood or dark coffee-ground material in vomit, severe or one-sided abdominal pain, fainting, confusion, a stiff neck, or trouble breathing. Seek prompt medical advice if you cannot keep fluids down, pass very little urine, feel markedly weak, have a high fever, or the vomiting continues after the period-related pain settles. A pregnancy possibility with pain or bleeding also needs prompt assessment.

Ask whether your pattern fits menstrual vomiting, whether a migraine or another condition should be considered, and which pain or anti-sickness medicines fit your health history. Mention unusually heavy bleeding, worsening cramps, missed periods, bowel symptoms, and any medicines or supplements you take.