Hong Kong is full of pressure, especially in postpartum women more vulnerable to mood swings. One study shows that every 10 maternal postnatal women will have 1 person with mood problems, but they might not have obvious symptoms, of which four to six months postpartum most prone to anxiety, severe cases may lead to mental illness, studies showed that 30% of the postpartum mothers have obsessive-compulsive disorder symptoms. Obsessive-compulsive disorder is a common mental illness; symptoms are divided into two categories, including pathological compulsion to thinking and compulsive behaviors. Compulsive thinking is the mind repeatedly having unnecessary thoughts, the idea of ​​images and impulses. The patient will continue to repeat certain behaviors or chores, such as constantly cleaning and counting objects, even though they know that these thoughts and actions is not necessary, but they cannot stop this. Symptoms may occur during pregnancy or postpartum. Patients will also have a strong anxiety symptoms will continue to appear in their mind the idea or image of ​​harming their baby until they cannot be alone with the baby, or the mother might have the anxiety of worrying their baby getting bacterial or viral infection which they will repeatedly keep cleaning sweeping around.

Psychiatrist medical doctor point out that obsessive-compulsive disorder have a significant impact on pregnant women, if not immediate addressing these postpartum emotional problems, psychological development of young children have a negative impact, so that their children social and cognitive problems will appear increase in risk. It is advice that husband and relative should be aware that prenatal or postpartum women, mood changes, giving support and understanding.