What is the reason behind having spotted bleeding...

What is the nature of period bleeding flow ?
nature : usually you bleed around 50 cc per period 
duration : usually its around 4-6 days , but it can last as few as 3 days , and as much as 7 days 
shape : its may look like a flow in first 2 days , then tend to be like spotting after that 
color : bright red , and may be accompanied by blood clots , or vaginal discharge at early or late time of the period 
How do know if your bleeding flow isnt normal ?
there are many sign may represnt that such as :
1. your current signs are new , and you didnt used to have it 
2. bleeding is longer than usually 
3. you have spotting between periods 
4. current huge pain 
What causes spotting during period ?
1. medication side effects 
2. uterine fibroids 
3. ovarian cyst 
4. hormonal imbalance 
what do to next ?
1. consult a OBGYN doctor to do a routine checks and make sure everything is ok 
2. the needed examinations are :
- physical examiantion
- productive system hormones 
- ultrasound imaging test 
General advices :
besides the following , do the next :
1. get a healthier meals 
2. exercise 
3. avoid stress 
4. avoid smoking 
5. have plenty of rest 
6. make sure you are not taking any medication that may effect your period as a side effect