What are the major difficulties of Everest Base Camp Trek?

Along with the Inca Trail and Kilimanjaro expedition, the Everest Base Camp Trek is one of the most popular treks in the world. No doubt it should be included in your bucket list.
EBC trek is two weeks plus teahouse trek in Nepal which follows the foot print of legendry mountaineers and takes you to lap of mighty Everest.
The Everest Base Camp Trekking Trip initiates with an overnight stop in the vibrant city of Kathmandu (the capital of Nepal). The next day begins with an adventurous flight to Lukla, the major gateway to Everest. It takes around 10 - 12 days to reach Base Camp and Kalapatthar and trek back to Lukla (it includes two nights halt at Namche Bazaar and Dingboche for acclimatization).
Most of trekkers believe that trekking to the BC of world highest peak via rough mountain terrain is treacherous. But it is not that challenging; with proper preparation and training, you can complete the trek without being the victim of mountain threats.
Here are some of the difficulties of Everest Base Camp Trek, you are likely to encounter during your trip:
Trekking Route
The trail route to EBC and back is roughly 130km (80 miles) (starting from and ending at Lukla). It also includes the side trip for acclimatization at Namche and Dingboche. It is roughly 65km one way route to reach BC which Himalaya9860Himalaya9860takes 8 - 9 days uphill walk and 3 - 4 days of easy downhill walk back to Lukla. Trekkers have to walk around 6 - 8 hours per day which covers approximately 6 - 7 miles. For unseasoned trekkers, the lengthy trekking route might be the difficulty.