Crankcase builds pressure

Depends on the cause.
Blow-by is when oil blows by the rings in the cylinders into the combustion chambers or compression blows by the rings into the crankcase. It can also be caused when too much pressure builds up in the crankcase because of a venting problem.
So blow-by can cause smoke out the tailpipe from oil burning with gasoline, or oil collecting in the air cleaner, or blowing out a seal or other place like your dipstick tube.
If it is caused by worn piston rings, the rings have to be replaced.
If it is a venting problem, you need to open up the vent, like the PCV valve or the air intake port.
If you remove the cap where you add oil and there is a vacuum when the engine is running, the venting system is working. If oil blows out the hole, there is too much pressure in the crankcase.

check your PCV ( positive crankcase valve ). It sounds like you are building up pressure inside the block and the valve isn't regulating it like it's supposed to....that pressure has to go somewhere and the dipstick is the next weakest link.

Check the base of the oil dip stick (ON THE BLOCK SIDE / under the car)

A crack at the base of the dipstick tube will care 2-3 quarts of oil spillage.

The only fix is to replace the oil tube on the bottom end,

all engines burn oil, ALL!
and if you dive faster, it burns more. (rate)
you did not state the rate, here in USA we do
quarts per mile (liters are same )
1 qt/ 3000 miles is norm.
but if you dont service a vehicle , for sure every 60miles.
100km. the PCV valve will clog and the crankcase will go over
pressure, and the car will leak and burn more oil.
the dip stick hole must **** not blow.
if it dont **** , running, the PCV is DEAD !
(1960 to present same deal)

Here's a link to the pcv valve,could be glogged up causing pressure to back up,Here's the pcv valve.

have you checked the pcv valve ( positive crankcase ventilation ). plugged pvc symtoms-- can contribute to sludging of engine. it will build up pressure in crankcase if plugged. the pressure can blow out seals, it can also force oil past oil rings and burn oil up in engine. shake pcv valve, if it rattles its ok. if all else fails check oil pan gasket and filter also. ive seen holes in oil filters or they are loose. and upon driving, pressure is put on oil and it blows out.

With Filter , 5qrts. of 10w40

Add about 2.5-quarts of new engine oil to the engine.
Remove the passenger-side wheel, and support the car on jack-stands.
Start the engine and look for oil leak.
Chances are leaks are coming from failed oil-pan gasket or the drain-plug.
The head-cover gasket could be failing as well..

Sounds like the engine can't breath,
make sure pcv valve is good,or oil cap is vented.
your engine is building up pressure and has no where to vent,so it blows the easiest thing,the dip stick

What engine? The oil level is good, not to high? If yes, it has too much crankcase pressure. Change the PCV valve and check the crankcase air filter. Also make sure you have vacuum at the PCV.