Hawthorn can be eaten in moderation during physiological period (menstruation). Hawthorn as a kind of fruit is sweet and sour, and contains rich vitamins, pectin, calcium, carbohydrates, carotene, etc. Moderate consumption can supplement the nutrition needed by the human body, and moderate consumption during menstruation will not cause adverse effects on menstruation. Hawthorn belongs to the same source of medicine and food, as a kind of traditional Chinese medicine, it has the function of strengthening stomach and eliminating food, activating blood circulation and removing blood stasis. Hawthorn is acidic and can stimulate gastric acid secretion, so patients with gastric ulcer and gastritis are advised not to consume it. People with excessive menstruation are also advised to eat less or not to consume it. Eating hawthorn in moderation during menstruation generally will not cause adverse reactions. Depending on your own situation, you can consult a professional physician for guidance.