Cause of infertility
Basically, it is found that about 30%-40% men are infertile, women about 30%-40%, both infertile man and woman about 10% and unidentifiable causes about 10%. 

Male:
30%-40% cause of infertility is from male. The factor which impacts to male infertility.

1. 1. Lifestyle such as insufficient sleeping, stress, foods, medication, cigarette and alcohol. Those are bad effect on quality of sperm.
   2. Personal disease such as sexually transmitted diseases or abnormality in hormone function have negative effect to sperm

Female:
30%-40% found that problems in female cause infertility. The cause of infertility in women can be classified regarding to;

1. 1. Age: major factor effect on egg. Usually, the quantity and quality of egg will decrease when the age increase. A peak period to pregnancy for women is in early and mid20s. After that the chance will be decline by the age.
   2. Lifestyle: Stressful, foods, insufficient sleeping will impact to hormone function which effect to egg growth and ovulation.
   3. Abnormalities in ovary, fallopian tubes and uterus: Some problems with uterus such as endometriosis, polyp, fibroids might decline ability of implantation. The pelvic adhesion or inflammation might be the cause of fallopian tube abnormality which disadvantage to fertilization.
   4. Personal disease some disease such as thyroid disease will impact hormone production.