Progesterone is not a direct cause of hair loss, the main side effects of progesterone are the following:
Breakthrough bleeding, vaginal spotting, weight gain or loss, cervical squamous-columnar junction changes, cervical secretion changes in character, breast swelling, nausea, dizziness. Headache, feeling of tiredness, fever, insomnia, allergy with or without scratching, acanthosis nigricans, chloasma, obstructive xanthomas, abnormal liver function.
But progesterone can cause insomnia and poor sleep quality. Prolonged insomnia is known to cause hair loss.
It is recommended that you still go to a specialist hair organization to detect the cause, because the number of hair follicles in the human body is fixed, belonging to the non-renewable resources, hair problems should be treated in a timely manner.