Why period after one day stop?

about period duration :
- if you are having a regular period with no high grade symptoms , then its considered as a normal medical condition , because periods duration is usually 3-5 days , but its may be 2 days as well as be 7 days 
- we suggest to visit a gynaecologist doctor just to make sure of your productive system health 
what to do next and what may happen :
1. imporve your life style : eat well , exercise , sleep well 
2. avoid anxeity and stress 
3. avoid smoking 
4. make sure that your not taking any medication that may effect your productive system 
5. consult a GYN doctor to do the needed medical checks and determine the treatment pathways if needed 
6. in case of medical illness which may be abnormal hormonal levels , doctor may give you some medication to supress or increase productive system hormones such as primlot 
7. in case of medical illness such as abonormal thyroid hormone levels , doctor will give a thyroid medications such as thyorxine 
8. in case of chronic disease causes a short period duration , doctors may do further medical examnation to determine the cause and the treatment 
disease and causes of short period :
1. life style 
2. stress 
3. medications side effect 
4. ovarian cyst 
5. abnormal productive system hormone 
6. thyroid hormone abnormalites